Wednesday, June 24, 2020


Forget Vaccines, Catch a Cold Instead

An interesting suggestion from  Jon N. Hall

The Wuhan pandemic has been compared to the devastating Spanish flu pandemic of 1918, but the two differ in their victims. The Spanish flu hit young adults aged 20-40, a group that the Wuhan virus mostly doesn’t prey on. The Spanish flu also hit children, which our virus virtually ignores. I’m not an epidemiologist, but when compared to the Spanish flu, COVID-19 seems almost “benign.”

The Spanish flu had a fatality rate of 2.5 percent, while the seasonal flu usually has a fatality rate of just 0.1 percent. Some research suggests that the fatality rate for Covid will ultimately turn out to be more in line with the seasonal flu than with the Spanish flu. And note that there’s a vaccine for the seasonal flu while scientists have yet to develop one for Covid.

So if the latest fatality numbers hold, then Covid will turn out to be much less lethal than the Spanish flu. But calculating the fatality rate is difficult, and can involve a lot of guesswork. To get a taste for the problem of putting a number on the fatality rate, read “Covid-19 Is Not the Spanish Flu” at Wired.

In his novel The Andromeda Strain (1969), Michael Crichton dreams up a pathogen which, in the small town it invades, spares no one except for two individuals. Perhaps the Wuhan virus, the novel coronavirus (SARS-CoV-2) that has been flown around the globe on commercial airliners to infect the entire planet, might be thought of as a “reverse Andromeda strain,” in that it spares just about everyone except for old folks. If that sounds wacky to you, then you haven’t kept abreast of recent research which suggests that Covid has already infected far more of the population than had been thought.

In Crichton’s fiction, the two survivors of his Andromeda bug aren’t saved by having superior immune systems, but rather by another biologic factor (which I’ll leave for those who haven’t read the novel to discover on their own). Because the Wuhan virus is new, one might think that Covid’s survivors are protected by the immune systems they were born with, i.e. their innate immune systems.

The exquisite defense system that we were born with is a general system. But when that general system of innate immunity neutralizes a pathogen, it creates a second line of defense, an antibody that targets that specific pathogen. Antibodies are part of the adaptive immune system, which is acquired. I know of a hair stylist who swears that the reason she never gets sick is because her clients continually cough and sneeze all over her. The gal may have developed adaptive immunity.

It’d be interesting to see what kinds of antibodies are present in people who work in close proximity to others, like our hair stylist. I’m not an immunologist, but because the Wuhan virus is new, what could account for the ease with which some throw it off, often not even knowing they’ve contracted anything? Is it innate immunity or something else?

On May 14, the website for the journal Science ran “T cells found in COVID-19 patients ‘bode well’ for long-term immunity” by Mitch Leslie. The article cites research suggesting that T cells which fight Covid could have been developed in response to other coronaviruses, like the common cold:

T cells, in contrast, thwart infections in two different ways. Helper T cells spur B cells and other immune defenders into action, whereas killer T cells target and destroy infected cells. The severity of disease can depend on the strength of these T cell responses. …

The researchers think these cells were likely triggered by past infection with one of the four human coronaviruses that cause colds; proteins in these viruses resemble those of SARS-CoV-2...

Before these studies, researchers didn’t know whether T cells played a role in eliminating SARS-CoV-2, or even whether they could provoke a dangerous immune system overreaction. [Link added.]

On May 21, The Federalist ran “Stop Fear-Mongering: Kids Are Safer From Covid-19 Than Everyone Else” by Phil Kerpen, who wrote that “recent papers suggest they [i.e. children] may either have innate immunity or effective partial immunity from recent exposure to common cold coronaviruses,” and he cites much foreign research to support that. But nowhere in his lengthy article does Mr. Kerpin mention T cells. However, on June 2 Kerpen tweeted “A lot of people beat SARS-CoV2 with just T cells.”

On June 3 at Business Insider, science reporter Aylin Woodward wrote:

Some people's immune systems may have a head start in fighting the coronavirus, recent research suggested.

A study published last month in the journal Cell showed that some people who have never been exposed to the coronavirus have helper T cells that are capable of recognizing and responding to it.

The likeliest explanation for the surprising finding, according to the researchers, is a phenomenon called cross-reactivity: when helper T cells developed in response to another virus react to a similar but previously unknown pathogen.

In this case, those T cells may be left over from people's previous exposure to a different coronavirus --- likely one of the four that cause common colds.

The Wuhan virus affects different groups in markedly different ways. Responses range from the asymptomatic to death. If you’re weathering the “cytokine storm” and a hospital puts you on a ventilator, you’d best have your “affairs in order.” To more completely understand this virus, we might study those in each group who respond differently than the group as a whole; that is, study the anomalies.

Are there any commonalities held by the anomalies in each group? The main group that Covid attacks is the elderly, but it also has a taste for males, the obese, and those with underlying conditions (comorbidities), such as diabetes. So, if Covid were to sweep through a nursing home and kill off every last patient except for an obese 70-year-old man with diabetes, we’d have ourselves an excellent anomaly to study, (which might even put one in mind of Crichton’s Andromeda strain.) Likewise, a grade schooler who succumbs to Covid while his classmates don’t even know they’ve contracted it, or a fit pro football player who is laid low by the virus, such as Mark Campbell, would also be an anomaly to investigate.

The “experts” tell us that we can’t get back to normal until we get a vaccine. But often the yearly flu shot is ineffective more than half the time. And there’s no guarantee that science will be able to come up with a vaccine. The experts weren’t able to develop vaccines for other coronaviruses, such as those responsible for SARS and MERS and the common cold.

Americans are being asked to wait for a vaccine which the vast majority of them don’t need due to their innate immunity, their antibodies from growing herd immunity due to having already contracted the virus, and their T cells. Also, this hoped-for vaccine might quickly become useless if the virus mutates, as viruses are wont to do. Are we just supposed to remain in lockdown while we wait until the so-called experts say it’s safe to go outside?

Think of how devastating the Wuhan virus would have been if it had hit the younger still-productive part of the population. Think of the heartache were it to have preyed on kids, wiping out classrooms in the way it wiped out nursing homes. If I were a virus, or a cannibal, I think I’d be more attracted to the young and succulent rather than to the old and stringy. So, as far as viruses go we’ve been lucky with Wuhan, given its choice of victims. Be that as it may, to boost your killer T cells: man up, leave your bunker, and go out and catch a cold.

SOURCE

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UK: One steroid, and all Europe, says lockdown must end

The discovery in Britain that a £5 steroid, dexamethasone, can be effective in treating COVID-19 marks a potential breakthrough in our understanding of the virus.

Much remains to be learned about the wider potential of the drug but the claims made about its success are striking: that it reduces deaths by one-third in patients on ventilators and by a fifth in ­patients receiving oxygen only.

It has not been shown to benefit COVID-19 patients who do not require oxygen, but this can still, in a global pandemic, mean thousands of lives saved.

There are two further points to be made. With COVID-19, there is a better chance of finding a treatment for the virus than of finding a vaccine. Second, the gathering and interrogation of this data can be of huge use in finding out what works and what does not. The British study looked at the role of old ­familiar generic drugs.

Pharmaceutical companies understandably focus on developing new products: that is their ­raison d’etre. There is no real money to be made in the discovery about the role of steroids.

It is understandable that Health Secretary Matt Hancock has been so keen to tell the world about dexamethasone. Some 4000 COVID patients are dying each day across the world, and if even a small fraction of those lives can be saved with a widely available drug then every day counts.

But another mass experiment is going on, which is also worthy of the British government’s attention. In schools, too, every day counts. Lockdown is being eased all over the world, without much sign of the second wave that so many feared.

In hundreds of thousands of classrooms, children are being taught in the same way as they were pre-COVID, without any viral backlash. The 2m rule should now be abolished and lighter regulations put in place, with schools first in line for a return to normal.

The evidence of London, too, needs to be taken into account. For two weeks now, the number of new lab-confirmed COVID cases has been, on average, two dozen a day — in a city of nine million. Nor have mass protests in Britain over the past fortnight ­resulted in the faintest flicker of a resurgence in new cases. There has been no triggering of the early warning systems (specifically in calls to the 111 hotline that mention COVID-­related symptoms).

We know this because the government is better now at collecting data. And the data should embolden ministers to move faster in reopening society.

The new cases, when they ­arrive, are isolated. Last week, we had news of an outbreak in Beijing, which may lead to the city being locked down in the way that Wuhan was in January. Bizarrely, China has responded by halting the import of European salmon. But overall, it is remarkable how little resurgence there has been in countries that have gradually eased their way out of lockdown or other restrictions.

Weeks ago, Prime Minister Boris Johnson suggested the COVID-19 crisis might not be solved until a vaccine was found. No one knows when that will be, yet the announcement on dexa­methasone reminds us that therapeutic drugs can go a long way to make up for the lack of a vaccine.

Look at HIV/AIDS. In the 1980s, a vaccine was thought to be four or five years away. It still hasn’t been found, but in the meantime retroviral drugs have done a pretty good job of suppressing the virus within individuals, to the extent that new infections have fallen sharply.

Given the success other European countries have had in relaxing lockdowns without rekindling the virus, it is puzzling that the British government is proceeding so gingerly. The level of infection in the population is now so low that it does not qualify under the definition of an epidemic. That has been the case for several weeks, yet non-essential shops have only just reopened, and there is no firm date for reopening bars, restaurants, theatres, hotels — only a promise that it won’t happen before July 4.

Johnson began this crisis seemingly unaware of the medical havoc it might cause. Now he risks seeming to ignore the economic and social damage it has already caused — and the even greater havoc it will cause if lockdown is not lifted soon. Businesses can keep going for only so long without income. Should lockdown be imposed for much longer, we will begin to see a cascade of collapse.

Six months ago, Johnson won an election partly by promising to be the entrepreneurial candidate, who would lead us away from the EU’s precautionary principle towards faster growth. It is time he finds the resolve shown by European counterparts — and leads Britain out of lockdown so the recovery can begin.

SOURCE

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IN BRIEF

Justice Department proposes rolling back protections for Big Tech (Reuters)

Trump signs bill protecting Chinese Uighurs on same day John Bolton claims he gave President Xi Jinping approval on detention camps (The Daily Caller)

Dick Durbin gives token apology to Tim Scott after "token" remark about police-reform bill (Washington Examiner)

Senate Democrats silent when asked if they condemn Dick Durbin's "token" comment (The Daily Caller)

Hypocrite Nancy Pelosi pours $180,000 into Facebook ads while calling for advertisers to boycott the site (The Washington Free Beacon)

Ex-Atlanta police officer who killed Rayshard Brooks charged with felony murder (CNN)

Georgia Bureau of Investigation says it was not consulted by the DA before charges were filed against officers in Brooks case (11alive.com)

"There are officers walking off": Atlanta cops vote with their feet on indictments (Power Line)

Dumb and dumber: Seattle adds concrete barricades to safeguard the militant group CHOP (Bearing Arms)

Cornell law professor censured by dean after criticizing Black Lives Matter movement (The College Fix)

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For more blog postings from me, see  TONGUE-TIED, EDUCATION WATCH INTERNATIONAL, GREENIE WATCHPOLITICAL CORRECTNESS WATCH, AUSTRALIAN POLITICS, and Paralipomena (Occasionally updated), A Coral reef compendium and an IQ compendium. (Both updated as news items come in).  GUN WATCH is now mainly put together by Dean Weingarten. I also put up occasional updates on my Personal blog and each day I gather together my most substantial current writings on THE PSYCHOLOGIST.

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1 comment:

Anonymous said...

HEADLINE - Rioters topple statues of "colonialist" icons.

In other news - Rioters invade and colonialize several city blocks in Seattle.

File under: "stuff you can't make up."