Tag Archives: Covid-19

The serious part of the pandemic is over, but the virus is here to stay

Massachusetts has some of the best statistics in the country on hospitalizations due to COVID-19.  Everybody admitted to the hospital gets tested for the virus so they won’t spread it.  However Massachusetts distinguishes people in the hospital with COVID-19 from people in the hospital because of COVID-19.  Statistics come out every Thursday usually after 5 PM — https://www.mass.gov/info-details/covid-19-response-reporting#covid-19-interactive-data-dashboard-

On 3 January ’23 there were 1,336 people hospitalized with COVID-19 and 437 hospitalized because of COVID-19.

On 9 May ’23 there were 172 people hospitalized with COVID-19 and 42 hospitalized because of COVID-19.

COVID-19 will always be with us, but it is acting differently than the season flu, as waves of high levels of mostly mild infections due to new variants (as shown by testing), without waves of hospitalization occur all year long,  so the new variants are milder.

The latest strain is XBB.1.16 which now accounts for 11% of USA cases (without a surge in hospitalizations or deaths).

The virus is still a killer, but you have to be old (like my wife and I) or seriously ill with something else to die from it.  That’s good news for just about everyone.

Remember when COVID-19 was being touted as a disease of the unvaccinated (by the CDC and everyone else) in an attempt to get people vaccinated.  All year long the percentage of ‘fully vaccinated’ people hospitalized with/for COVID-19 in Massachusetts has ranged from 60 to 71%.  Some humility is in order

I called the current state in China in March of this year

https://www.cnn.com/2022/12/14/china/beijing-zero-covid-easing-streets-impact-intl-hnk-mic/index.html?utm_term=16710088517904a0e1f78c2ad&utm_source=cnn_Meanwhile+in+China+-+12.14.2022&utm_medium=email&bt_ee=UJOa6AAdoMdpv8zVd3R8kqP0vvKzTdQEV38THfAQNCVnL8dBJWuzcCiELZKliS9c&bt_ts=1671008851894 of

Back on March 15  2022,  I wrote a post about what was likely to happen in China.  It included older posts along the same line.   The basic argument was that the Chinese populace is a bunch of immunologic virgins to the pandemic virus due to several factors (1) the zero covid policy (2) the low rate of vaccination in the most susceptible –e.g. the elderly (3) the ineffectiveness of the vaccines they’ve been given.   Fortunately the newer variants don’t appear as malignant as the original SARS-CoV-2

Here’s the old post

China will be near collapse due to COVID19 — here’s why

Here is why I think China will be near collapse due to COVID19 in the next few months.

Due to a strict containment policy, the only experience the Chinese population (excepting Wuhan) has had with the pandemic virus has been by vaccination, mostly with Sinopharm and Coronavac.  These are known to be less effective against the Omicron variant than the western mRNA vaccines (Pfizer, etc.) which themselves are not terribly effective against infection.  So most Chinese are immunologic virgins for exposure to the variants of the pandemic virus and the omicron variant of the virus is incredibly infectious.

In contrast, western populations have been exposed to variant after variant of the pandemic virus, building up immunity to coronaviruses.  The vast majority of cases are mild not requiring hospitalization, and many are completely asymptomatic.

One small piece of evidence for this — there are many more —

The following is from a post July/2020.

https://www.nytimes.com/2020/07/09/nyregion/nyc-coronavirus-antibodies.html–https://www.cnbc.com/2020/04/23/new-york-antibody-study-estimates-13point9percent-of-residents-have-had-the-coronavirus-cuomo-says.html.

New York State  randomly tested 3,000 people at grocery stores and shopping locations across 19 counties in 40 localities to see if they had the antibodies to fight the coronavirus, indicating they have had the virus and recovered from it. With more than 19.4 million people residents, according to U.S. Census data, the preliminary results imply that at least 2.7 million New Yorkers have been infected with Covid-19.They weren’t all hospitalized.

If you’re into authoritative statements, here is Dr. Fauci 3 months ago –Source — https://nypost.com/2021/12/12/omicron-appears-to-evade-some-protection-from-covid-vaccines/

“We’re getting anecdotal information … not necessarily confirmed yet, that the level of severity appears to be maybe a bit less than in the Delta. But there are a lot of confounding issues that it may be due to the underlying protection in the community due to prior infections,”

Omicron spreads like wildfire.  For example, we had to call our plumber a week ago.  He has trained his teenage daughter to enter the trade.  We talked about the pandemic.  Teenagers love crowded parties (well I did, and so did our kids). His daughter  told us that apparently one irresponsible kid came to a party while sick in the early stages of what turned out to COVID19 and transmitted the virus to NINETEEN people.

Here is the Hong Kong experience.  It began with an aircrew member from Cathay Pacific Airways Ltd., who was subsequently found to be infected with omicron.  He ate lunch at a restaurant 27 December ’21 with his family. . Five other customers later tested positive.   By the first week in March there were over 50,000 new cases each day.  Fortunately Hong Kong appears to have passed the peak with ‘only’ 20 – 30 thousand new cases each day.

The South China Morning Post of 16 March notes that 90% of Hong Kong residents have received one dose of a vaccine.  This hardly speaks well for the efficacy of whatever they received.

The Hong Kong experience has been rationalized by several reasons perhaps peculiar to Hong Kong:

l. A very low vaccination rate among the most vulnerable (e.g. over 80)

2. Very high population density — 50% of the population in Hong Kong live in public housing which is mostly very tall, very skinny high rises, due to the lack of buildable land in Hong Kong.  The elevators are a perfect way to transmit the virus.

I can’t speak to how common this is elsewhere in China.

5 days ago the number of cases in China was 1,000.  Today (16 March) I read that there were 5,100 on 15 March — https://www.scmp.com/news/china/science/article/3170631/china-reports-another-3000-covid-19-cases-latest-surge-continues?module=lead_hero_story&pgtype=homepage

So the elevator pitch is — a highly infectious virus is loose in a huge, previously uninfected population with minimal vaccine protection.

I was very worried that something like this could happen all over China in posts  written 2 and 3months ago, long before the number of cases in Hong Kong took off.  You can find my reasoning in the following post — https://luysii.wordpress.com/2022/01/15/i-hope-to-hell-i-was-wrong-about-china/   It was published 15 January ’22, and can be found below and it contains the 12 December ’21 post:

Addendum 16 Marchhttps://www.shine.cn/news/nation/2203163160/–Mainland China now has 1,860 locally transmitted cases — with most in the province next to North, but in 20 other locations all over China including Shanghai and Beijing. This is is not good news given how infectious Omicron is.

 

I hope to Hell I was wrong about China

From the South China Morning Post — 9:52pm, 15 Jan, 2022

“The Chinese capital reported its first community case of the Omicron coronavirus variant on Saturday, with local and imported infections of the strain now detected in about half of the country’s provinces and municipalities.”

https://www.scmp.com/news/china/politics/article/3163525/china-braces-omicron-variant-extends-its-reach-and-lunar-new-

If true, containment, quarantine, lockdowns and isolation are hopeless.  The quote implies that they’ve already failed.

I find this very worrisome for reasons listed in a post 12 December 2021, a copy of which is below.

The short answer is that the mainland Chinese are immunologic virgins to exposure to the variants of the pandemic virus.  Hopefully their vaccines will work better against omicron than those of the west, but there is no reason to think they will.

Is China following a Smokey the Bear policy on the pandemic?

China is following a prevent pandemic virus infection policy, just as Smokey the Bear followed a prevent forrest fires policy.  The latter didn’t work out well, as although fires were prevented for a while. However, when fires did occur, they were much much worse than the smaller ones Smokey prevented.  There was much more tinder and stuff to burn.

Actually Smokey has changed his tune slightly.

https://en.wikipedia.org/wiki/Smokey_Bear  SmokeyBear.com’s current site has a section on “Benefits of Fire” that includes this information: “Fire managers can reintroduce fire into fire-dependent ecosystems with prescribed fire. Under specific, controlled conditions, the beneficial effects of natural fire can be recreated, fuel buildup can be reduced, and we can prevent the catastrophic losses of uncontrolled, unwanted wildfire.”

Revision 14 December 2021 — China’s policy of prevention has resulted in a Chinese population which has been vaccinated using two killed virus vaccines (Sinopharm, Coronavac).  They have not had any natural infections with the virus (aside from the original cases) as far as we know given what China has allowed out.

Infection with the virus itself exposes you to all its proteins, with your immune system responding to all of them.   Western vaccines are just to the spike protein.

It tends to be forgotten that moist cases of pandemic viral infection are asymptomatic.

Given 800K deaths  from COVID19  in the USA, how can I possibly say this is good. Here’s how :>

If you had an infection with the virus, you develop antibodies.  Nowadays, everyone who is vaccinated has antibodies so there is no point in testing for them, but what were things like in the days before vaccines?

The following is from a post July/2020.

https://www.nytimes.com/2020/07/09/nyregion/nyc-coronavirus-antibodies.html–https://www.cnbc.com/2020/04/23/new-york-antibody-study-estimates-13point9percent-of-residents-have-had-the-coronavirus-cuomo-says.html.

New York State  randomly tested 3,000 people at grocery stores and shopping locations across 19 counties in 40 localities to see if they had the antibodies to fight the coronavirus, indicating they have had the virus and recovered from it. With more than 19.4 million people residents, according to U.S. Census data, the preliminary results imply that at least 2.7 million New Yorkers have been infected with Covid-19.They weren’t all hospitalized.

Here’s some work the same month from Queens — https://www.nytimes.com/2020/07/09/nyregion/nyc-coronavirus-antibodies.html

At a clinic in Corona, a working-class neighborhood in Queens, more than 68 percent of people tested positive for antibodies to the new coronavirus. At another clinic in Jackson Heights, Queens, that number was 56 percent. But at a clinic in Cobble Hill, a mostly white and wealthy neighborhood in Brooklyn, only 13 percent of people tested positive for antibodies.

So the disease has already to spread to half the population in some neighborhoods in Queens. If even 10% of them were sick that would have been 140,000 hospitalizations.  They didn’t happen.

OK, so a lot more people were infected than got sick.  Why is this good?

Enter the omicron variant of the pandemic virus.  It can evade the antibodies produced by all the current vaccines (in the West — protection against the Chinese killed viral vaccines CoronaVac and Sinopharm isn’t known yet).   Yet omicron doesn’t appear to produce severe disease. Thus far…

 

The CDC in the past week said of the 40+ omicron cases it knows about (there certainly are more out there, and more to come), there was one hospitalization (for two days) and no deaths.

Here is Dr. Fauci 12 December 2021 — “We’re getting anecdotal information … not necessarily confirmed yet, that the level of severity appears to be maybe a bit less than in the Delta. But there are a lot of confounding issues that it may be due to the underlying protection in the community due to prior infections,”

Source — https://nypost.com/2021/12/12/omicron-appears-to-evade-some-protection-from-covid-vaccines/

So the Chinese population may be sitting ducks for omicron having been given vaccines (Sinopharm, Coronavac) of unknown potency against omicron.  If their statistics are true there has been little or no natural infection with the pandemic virus in the Chinese population (which Fauci has just implicated is protective),.  Given that I have a son, daughter in law and two grandkids living in Hong Kong, I find this extremely disconcerting.

Is the end of the pandemic at hand?

6 days ago I published my brother’s idea, that the pandemic may be nearing an end.  That post can be found below the ****

Here is some startling evidence that he might be right.  Today’s (12 August) Nature pp. 175 – 176, notes that new ‘cases’ in the UK defined as a positive test for the viral genome dropped in half from 17 July to 2 August 54,674 to 22,287. That could just be due to fewer people being tested (the total number tested isn’t given in the article).  More to the point, hospitalizations dropped from 836 25 July to 645 1 August.  It isn’t clear if all these numbers are daily or weekly.  Regardless, it is worth noting just how few cases are actually hospitalized ( 836/54674 = 1.5%)

These numbers are those persons deciding or required to be tested.  A random population survey is in order to see how many people now have antibodies to the virus.  Clearly SARS-Cov-2 can spread widely without making most people sick.

It is worth noting that the article doesn’t consider my brother’s idea as a possibility, so it likely originated with him.  If so, Bravo ! ! !

Addendum 19 August — from Nature vol. 596 p. 326 “In a nationwide survey of about 28,000 people (two-thirds of whom were unvaccinated and had therefore acquired immunity from infection) in June and July this year, researchers found that 68% had SARS-CoV-2 antibodies in their blood. This represented a huge increase from the 21% with antibodies, recorded in a similar survey in December 2020 to January 2021, before the second wave.”  This is exactly what my brother was talking about — vaccination by infection. It shows that most infections are survivable — with a population of 1.3 billion, the vast majority of those coming in contact with the pandemic virus are still here.

****

Sibling rivalry aside, my younger brother thinks that we’re currently in a mass vaccination situation with the pandemic virus.  He does not mean that people are willingly signing up for vaccinations. He says that the Delta virus is so infectious and spreading so quickly, and that most cases are asymptomatic that  the populace is being vaccinated by infection.  If so, those who will die because they weren’t vaccinated will die and those unvaccinated who have been infected but not sick will be immune, so that the populace will achieve herd immunity in a month or two and the pandemic will be over.Fantastic if true.

My kid brother’s brilliant idea

Sibling rivalry aside, my younger brother thinks that we’re currently in a mass vaccination situation with the pandemic virus.  He does not mean that people are willingly signing up for vaccinations. He says that the Delta virus is so infectious and spreading so quickly, and that most cases are asymptomatic that  the populace is being vaccinated by infection.  If so, those who will die because they weren’t vaccinated will die and those unvaccinated who have been infected but not sick will be immune, so that the populace will achieve herd immunity in a month or two and the pandemic will be over.Fantastic if true.

How a doctor must learn to think

The previous post (found just below) is a textbook example of how a doctor (e.g. me) thinks about medical issues.

“A steady rise in COVID-19 is continuing this week as the state reported 208 new cases Wednesday.

Updated data from the Massachusetts Department of Public Health shows that new cases last week rose 46% over the previous week. The updated percentage includes cases from last week that were reported Wednesday. It’s the second week in a row that cases rose after more than two months of decline that hit a pandemic low the week of June 20.”

Well those are the first two paragraphs of https://www.masslive.com/coronavirus/2021/07/just-one-month-aver-hitting-pandemic-lows-new-covid-cases-in-massachusetts-continue-to-rise-as-delta-variant-spreads.html

Which led to the post

Here are the next two paragraphs

“Deaths continue to remain low, however, with one new COVID death being reported on Wednesday. A total of 17,648 Massachusetts residents have died from the virus since the start of the pandemic.

Hospitalizations ticked back up to 102 after hitting a low of 80 on July 4. They have slowly been trending back up since then. Of the hospitalizations, 37 are in intensive care and 17 are intubated.”

 

If they led with the second two paragraphs no one would have read the article.
This is typical in several ways of the medical literature

 

l. Make the most spectacular claim you can first off to grab the readers attention — we’re in another wave of the epidemic

2. The actual data don’t seem to support the lead (things just aren’t that bad).

Eventually I’d read each medical paper wondering how the authors were lying to me — for a horrible example (from Johns Hopkins yet — please see   https://luysii.wordpress.com/2009/10/05/low-socioeconomic-status-in-the-first-5-years-of-life-doubles-your-chance-of-coronary-artery-disease-at-50-even-if-you-became-a-doc-or-why-i-hated-reading-the-medical-literature-when-i-had-to/

So now the doc has to deal with two conflicting pieces of information.  This never happens in math (which is why I love reading it in retirement).  You can prove anything from assuming a statement and its negation are both true.  Here’s how Bertrand Russell proved that he was the Pope starting with 1 = 2. “Either the Pope and I are one person or we are two people. If 1=21=2 then in either case we are one person. Therefore, I am the Pope.”

 

So the doc has to reach into his/her store of knowledge to figure it out.  Well, he/she knows that most COVID-19 stay in the hospital for longer than a day.  Clearly not all the 208 cases wound up in the hospital as there were only 102 COVID-19 cases in the hospital.  I’m guessing that the median (not average) length of hospital stay for COVID-19 is two weeks.

 

But it’s more complicated than that (https://www.nuffieldtrust.org.uk/resource/chart-of-the-week-how-long-do-covid-19-patients-spend-in-hospital) as in England the median length of stay ranged from 5 to 10 in the past year.

 

So how many ‘cases’ of COVID-19 were there in Massachusetts — the excellent statistics of the Department of Health says about 1,000 in the past two weeks.
So if there are only 100 in hospital and the average stay is 10 days (I couldn’t find data for Massachusetts — again this is typical of medical practice — you can’t find the data you really want), 90% of the COVID-19 cases aren’t severe enough to be hospitalized.

 

This led to the conclusion in the first part of the post “What does the rise in COVID-19 cases mean?  NOT MUCH.”

 

The data is quite similar to that from Los Angeles — http://publichealth.lacounty.gov/media/coronavirus/data/index.html
1,827 cases on the 17th, 500 COVID-19 cases in the hospital.  Assume that cases are rising and figure 1,000 cases/day over the past 10 days, and you get to 95% of ‘cases’ not sick enough to be hospitalized.

 

When the normal person thinks of a ‘case’ of a disease, they think of someone who is physically ill.  Not so with COVID-19, and this is incredibly dishonest reporting by the press, various health departments etc. etc.

 

My post ends with “Presently nearly all the deaths from COVID-19 are in people who were not vaccinated, so to lower your odds further please get vaccinated.”

I couldn’t track this down to any sort of hard data.  It certainly is plausible, but how may plausible medical ideas have I seen crash and burn.  The Associated Press quotes a former official in the Obama administration making this claim.  At least they identify him Andrew Slavitt — a former investment banker — rather than an anonymous source.

Addendum 21 July

“There’s a common theme among those behind the worsening COVID-19 numbers, said Dr. Rochelle Walensky, director of the US Centers for Disease Control and Prevention:

“This is becoming a pandemic of the unvaccinated,” Walensky said at a COVID-19 briefing Friday.”

More than 97% of people getting hospitalized with COVID-19 now are unvaccinated, Walensky said. And 99.5% of deaths are among the unvaccinated, US Surgeon General Dr. Vivek Murthy said Sunday.”

Even more reason to get vaccinated.

*****

What is a ‘case’ of COVID-19

What does the rise in COVID-19 cases mean?  NOT MUCH.  Here’s how the local paper played it — https://www.masslive.com/coronavirus/2021/07/just-one-month-aver-hitting-pandemic-lows-new-covid-cases-in-massachusetts-continue-to-rise-as-delta-variant-spreads.html

There were 208 ‘cases’ today 14 July 2021   in Massachusetts, which is a rate 46% higher than last week. In the past two weeks there have been about 1,000 cases according to the Massachusetts department of health. https://www.mass.gov/info-details/covid-19-response-reporting#covid-19-interactive-data-dashboard-

So the hospitals must be packed and deaths must be soaring.  Right?

Wrong — the same article tells us that there are currently 100 people in Massachusetts hospitals with COVID-19 and that there was one death today

This means that what they are calling a case of COVID-19 is not enough to put 90% of people with it in the hospital.  Most of the ‘cases’ of COVID-19 in Massachusetts are either asymptomatic or mild.

It’s hard to find comparable statistics from states with lower vaccination rates (e.g. the south) but deaths are also lower there.

Well what about the Delta variant?  It is definitely more infectious, and the disease it causes is more severe.  We should be in big trouble if Delta takes over in the USA.  Right?

Wrong.  Delta has taken over.  According to the CDC, Delta accounts for 58% of all new cases of COVID-19 in the USA — https://abcnews.go.com/Health/delta-variant-now-accounts-58-covid-19-cases/story?id=78834579.   Deaths have not spiked.  The vaccines are working.

Presently nearly all the deaths from COVID-19 are in people who were not vaccinated, so to lower your odds further please get vaccinated.

My friends and I did — https://luysii.wordpress.com/2021/05/19/anti-vaxers-what-is-it-that-you-know-that-we-dont/

What is a ‘case’ of COVID-19

What does the rise in COVID-19 cases mean?  NOT MUCH.  Here’s how the local paper played it — https://www.masslive.com/coronavirus/2021/07/just-one-month-aver-hitting-pandemic-lows-new-covid-cases-in-massachusetts-continue-to-rise-as-delta-variant-spreads.html

There were 208 ‘cases’ today 14 July 2021   in Massachusetts, which is a rate 46% higher than last week. In the past two weeks there have been about 1,000 cases according to the Massachusetts department of health. https://www.mass.gov/info-details/covid-19-response-reporting#covid-19-interactive-data-dashboard-

So the hospitals must be packed and deaths must be soaring.  Right?

Wrong — the same article tells us that there are currently 100 people in Massachusetts hospitals with COVID-19 and that there was one death today

This means that what they are calling a case of COVID-19 is not enough to put 90% of people with it in the hospital.  Most of the ‘cases’ of COVID-19 in Massachusetts are either asymptomatic or mild.

It’s hard to find comparable statistics from states with lower vaccination rates (e.g. the south) but deaths are also lower there.

Well what about the Delta variant?  It is definitely more infectious, and the disease it causes is more severe.  We should be in big trouble if Delta takes over in the USA.  Right?

Wrong.  Delta has taken over.  According to the CDC, Delta accounts for 58% of all new cases of COVID-19 in the USA — https://abcnews.go.com/Health/delta-variant-now-accounts-58-covid-19-cases/story?id=78834579.   Deaths have not spiked.  The vaccines are working.

Presently nearly all the deaths from COVID-19 are in people who were not vaccinated, so to lower your odds further please get vaccinated.

My friends and I did — https://luysii.wordpress.com/2021/05/19/anti-vaxers-what-is-it-that-you-know-that-we-dont/

Welcome to the world of the physician


In a sense, the uncertainty about hematologic complications of the pandemic vaccines is good in that it is a real teaching moment for the public about what docs confront every day — balancing risk vs. reward. 

No drug is without side effects.  No surgery is without complications.  It is good to see the public  wrestle with these things.  

For a very good explanation of what those complications are and the risks and rewards of taking the vaccines please see — 

https://blogs.sciencemag.org/pipeline/archives/2021/04/14/vaccine-side-effects-q-and-a

Even more interesting are the 139 comments found at the end of  the article.  Some are from experts, some are from frightened lay people; as always there are people with an ax to grind.  As is usually the case in medicine, the data are not clear cut and sometimes contradictory.  As is always the case more data would be helpful, is desired and rarely available.  What is particularly interesting to me is the way some very knowledgable people wrestle with the data, interpreting the same data differently.  Welcome to the real world. 

On a more positive note, a friend who teaches at Hopkins sent me the a copy of the eMail below, with permission to share it.  This provides lots of excellent data on the protective effects of vaccination in a  group of people with a fairly high risk of exposure to the virus,  working at a major medical center where lots of very sick COVID-19 patients are being treated. 

35,000 were vaccinated.  Nonetheless 51 became infected at a time of maximum protection (5 weeks or more after the first shot), demonstrating that the vaccine isn’t 100% protective.  But no one ever claimed that it was.

 But only 2 of the 51 required hospitalization.  So the vaccine is effective in preventing serious illness from the virus (2/35,000).  So who cares if the other 49 had the symptoms of the flu.  They don’t and you shouldn’t.  The number of hematologic complications wasn’t stated. There were two at most, as they always result in hospitalization.  

To the Johns Hopkins Medicine community

 

Dear Colleagues,

 

As we continue to monitor COVID-19 infection and vaccination trends at Johns Hopkins Medicine (JHM), we want to share some data about the incidence of infection among JHM personnel following partial and full vaccination.

 

You are considered fully vaccinated, per the Centers for Disease Control and Prevention, two weeks or more after receiving the second dose of a two-dose COVID-19 vaccine regimen and two weeks or more after receiving a one-dose COVID-19 vaccine regimen. This is when the body has had a chance to produce the antibodies and immune response that protect against infection. Before this time, if you have started the vaccination series, you are considered partially vaccinated and you do not yet have the full amount of protection the vaccination provides against infection. While full vaccination has been found to be highly effective at preventing COVID-19, infection (the incidence is very low) is still possible even after being fully vaccinated.

 

We are monitoring the situation to determine how often infection seems to occur after partial or full vaccination, and the severity of those infections.

 

As of April 12, 2021, of the nearly 35,000 employees who were fully vaccinated (14 days or more after a second dose), 51 employees (0.14% of those who have been fully vaccinated) had tested positive for COVID-19. This demonstrates that SARS-CoV-2 infection is possible even after full vaccination, and it highlights the importance of continuing to practice basic infection prevention precautions after full vaccination. The good news is that acquiring COVID-19 after full vaccination appears to be relatively rare and, among these 51 cases, only two were severe enough to require hospitalization. This shows that the COVID-19 vaccine is highly protective against severe disease, hospitalization and death. If you have not yet been vaccinated, please schedule your appointment as soon as you can to protect yourself and others.

 

 

Is the virus still within you? Will it cause trouble?

Let’s say you’ve recovered from a bout with COVID-19. Is the virus still with you? Could it come back and cause trouble? Given the data in a recent paper [ Nature vol. 591 pp. 639 – 644 ’21 ] — https://www.nature.com/articles/s41586-021-03207-w.pdf, it’s quite possible.

But first a story about my grandmother.  She was born somewhere around the Baltic Sea in 1880 and came to America in 1893.  She died of undiagnosed (hence untreated) miliary Tuberculosis in a University Hospital in 1967.  Just about everyone in Europe in the 1880s was exposed to TB and just like SARS-CoV-2 many if not most were asymptomatic.  Their lungs walled off the organism in something called a Gohn complex — https://en.wikipedia.org/wiki/Ghon%27s_complex.  The organism didn’t die — and probably broke out of the complex as my grandmother aged and her immune system got weaker and weaker.  It is very unlikely that she picked it up by exposure in the 1960’s.  As they say TB is forgotten but not gone.  

Which brings me to the Nature paper.  At first I thought it was great and very optimistic.  Some 87 people from New York City who had symptomatic SARS-CoV-2 infection (proven by finding the viral genome using RT-PCR technique).  The authors studied the antibody responses at an average of 1.3 and 6.2 months after infection.  Although the antibody levels dropped (which always happens) they changed so they bound the virus more tightly.  This is called affinity maturation — https://en.wikipedia.org/wiki/Affinity_maturation.  

So that’s good? 

No that’s bad because it implies that the protein stimulating affinity maturation is still around. The authors note the persistent antigenic stimulation of the immune system is possible because an “antigen trapped in the form of immune complexes on follicular dendritic cells .. . . . can be long-lived, because follicular dendritic cells do not internalize immune complexes”.  

Well maybe, but the paper gives evidence for another mechanism of antigen persistence (which I find more persuasive). 14 of the people had intestinal biopsies for appropriate clinical indications (see Table 7 in the supplementary information of the article). In some of the biopsies they detect viral antigen in some of the enterocytes (cells which line the inside of the gut) — I’m assuming the antigen is the viral spike protein, but it’s hard to find exactly what it is. 

This is quite bad, as the lifetime of the enterocyte is 5 days.  This means that the antigen is being continually produced, which means that the mRNA for the antigen is being continually produced, which in turn means that the viral genome is still around.  The mean lifetime of cellular mRNAs is 10 hours although some hang around for days, however I doubt that the mRNA responsible for the viral antigen had lasted for 2.8 to 5.7 months which is the time after clinical infection when the biopsies were done. 

So it is possible, that like TB in the Gohn complex, the immune system has fought the virus to a draw, but that the intact organism could be still present.  As in my grandmother, it is possible that the virus will reappear as the immune system weakens with age (something that happens in all of us). 

In that case we wouldl have recrudescence not reinfection. 

PS:  My grandmother came to this country at age 13 alone and speaking no English.  Every time I feel sad at what the pandemic has put us all through, I think of that generation.  

PPS: When she got sick, I wanted to put her in the hospital where I was an intern, but our family GP (Dr. Richard A. Gove) told me taking care of my own family was a very bad idea and put her elsewhere.  I doubt that I’d have made the diagnosis, or that anyone at our hospital would have. 

PPPS:  I don’t know if they still do autopsies, but I was always able to get one after I’d tell families of the deceased about my grandmother.  It meant that my wife and I and our two little kids were all screened for TB. 

PPPPS — a friend brought up the following — Eleanor Roosevelt, who was thought to have aplastic anemia, was treated with prednisone and later found to have died of military tuberculous, probably the recurrence of tb acquired some 4 decades earlier.

 

 

 

A non-coercive way to get people to accept vaccination for the pandemic virus

Many people are afraid of being vaccinated (for anything, not just the pandemic flu). Yelling at them won’t help. Calling them stupid won’t help. You can’t pass a law to coerce them, but here’s a law that would likely convince them that it is a good idea.

Can you think of it?

I’m not sure if congress could do it, or whether it would have to be done state by state.

Just require all death certificates for people dying with COVID-19 to state whether they’d been vaccinated or not. Certainly now all of the deaths will be in unvaccinated people, but as time passes (say 3 – 6 months) and 95% of them remain in the unvaccinated (as studies of the vaccine have shown) and 1/3 to half of the population is vaccinated, people will take notice.

I don’t know any legislators, but maybe you do, and you should suggest it to them.

DON’T TOUCH YOUR MASK !!!

I am fortunate enough to have a beautiful reservoir within a half mile of my house. Over the years in the 3.5 mile circumferential stroll it requires I’ve seen 3 black bears, 20 or so American Eagles, Swans, Mergansers, deer, chipmunks and 20 billion Canada geese.

I don’t wear a mask when I’m out there, because at most I’ll see 100 or so people during the walk. Everyone is very good about social distancing and actual propinquity lasts a few seconds at most when we’re walking in opposite directions. About 80% are wearing masks, or at least have them around their neck. Those wearing them around their neck grab them and cover their mouth and (sometimes) their noses.

This is a terrible mistake. The only way the pandemic virus can cause you serious trouble is if it gets to your mouth, nose or eyes. It will never get through your skin. Unless you carefully washed your hands before leaving for the reservoir, you might have it on the skin of your hands. Do not give it a free ride to your mask where it will happily reside getting a shot at entry every time you inhale.

Amazingly, this is not generally known, and people seem genuinely surprised when I tell them this. Most of them thank me.

Places like the reservoir are among the few where you don’t need to wear a mask. So protect yourself if you wear one, and don’t touch it.

Lots of people seem to be using cell phones on the walk, which is even worse, should they contain the virus, as contact is much more prolonged than a simple mask adjustment. How many people clean their cellphones?

One happy point now that winter is almost on us in these parts. The crucial spike protein of the virus (which is how it gets into your cells) deteriorates and becomes nonInfectious after storage for a week at 4 centigrade (about 40 F). What an overnight chill does for it is anyone’s guess. This is from a non-peer reviewed preprint — https://www.biorxiv.org/content/10.1101/2020.07.12.199588v1