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Tag Archives: Viral Interference

Scary New Variant or Omicrommon Cold?

08 Wednesday Dec 2021

Posted by pnoetx in Coronavirus, Pandemic, Uncategorized

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Coronavirus, Covid-19, Delta Variant, Ethical Skeptic, Gauteng Province, Immune Escape, Mutations, Omicron Variant, South Africa, Spanish Flu, Viral Interference, Vitamin D, World Health Organization, Xi Jinping, Xi Variant

The political motives behind the naming of the Covid Omicron variant might prove to be a huge irony. The Greek letter Xi was skipped by the World Health Organization (WHO), undoubtedly to avoid any symbolic association between Covid and the Chinese dictator Xi Jinping. After all, he’s probably determined to bury discussion of the leak at the Wuhan lab that was the probable cause of this whole mess. The WHO was happy to provide cover. The irony is that the Omicron variant might well bring on a more gentle phase of the pandemic if early indications can be trusted. But in that case, my guess is Chairman Xi wouldn’t have appreciated the twist even if WHO had called it the Xi variant.

The Omicron variant was identified in the Gauteng Province of South Africa and announced by national health authorities on November 24th. The earliest known sample was taken on November 9th. The variant was subsequently diagnosed in a number of other countries, including the U.S. It has a large number of mutations, and initial reports indicated that the variant was spreading extremely fast, having suddenly outcompeted other variants to account for the majority of new cases in South Africa. It is apparently highly contagious. Moreover, Omicron has been diagnosed among the vaccinated as well as those having immunity from prior infections, which is usually more effective and durable than vaccination. Thus, it is said to have “immune escape” properties. Scary indeed!

However, Omicron seems to have been around much longer than suggested by its initial diagnosis in late November (and see this link for an extreme view). Cases in a number of countries show that it is already global; the lags involved in diagnosis as well as earlier contacts with spreaders suggest that Omicron’s origin could have been as early as late September. That means the spread has not been quite as fast as the first alarming reports suggested.

The reported symptoms of the Omicron variant have been quite mild, with fatigue being the most noteworthy. Omicron appears to have taken one mutation from the common cold, which, like Covid-19, is a type of coronavirus. And while there has been a surge in hospitalized cases in South Africa, most of these are said to be “incidental”. That is, these patients were admitted for other problems but happened to test positive for the Omicron variant. As we’ve seen throughout the pandemic, the data is not always reliable.

It’s too early to draw definite conclusions, and this variant might prove to be more dangerous with time. In fact, some say that South Africa’s experience might not be representative because of its young population and high natural immunity. It also happens to be early summer there, when higher vitamin D levels help to boost immunity. So, there is a great deal of uncertainty about Omicron (and see here). Nevertheless, I’ll risk a jinx by momentarily contemplating an outcome that’s not terribly far-fetched.

Viruses mutate in ways that help ensure their survival: they must not kill too many of their hosts, which means the usual progression is toward less lethal variants. They may become more contagious, and new variants must be contagious enough to outcompete their ancestors. Viral interference can sometimes prevent multiple viruses from having a broad coexistence. That’s the likely phenomenon we witnessed when the Covid pandemic coincided with the virtual disappearance of the flu and other respiratory viruses. More to the point, it’s the same phenomenon that occurred when the Spanish Flu was eventually outcompeted by less deadly variants.

So it’s possible that a mild Omicron will put the pandemic behind us. If it proves to be as contagious and as mild as it appears thus far, it would likely displace Delta and other variants as the first phase of a new, endemic malady. That might even cut into the severity of the current seasonal wave. The Ethical Skeptic tweets thusly:

“So was Omicron an ultra fast-mutating magic terminator variant? A gift from God, or aliens…? … Or natural virility/genetic profile derived from a previous variant conferring immunity …”

That would be a wonderful outcome, but Omicron’s arrival in the northern hemisphere just as winter gets underway contributes to the uncertainty. It’s severity during the northern winter could be far worse than what we’ve seen in South Africa. We can hope this variant isn’t one truly deserving of Chairman Xi’s name.

Mask Truths and Signals

26 Tuesday Oct 2021

Posted by pnoetx in Coronavirus, Public Health

≈ 6 Comments

Tags

Aerosols, Anne Wheeler, Cloth Masks, Comorbitities, Coronavirus, Covid-19, Delta Variant, Emotional Interference, Endemicity, Germaphobia, Influenza, Mask Mandates, Masks, Michael Levitt, OCD Therapy, Outdoor Infectiions, Precautionary Principle, Randomized Control Trials, Seasonality, Viral Interference, Viral Transmission

It’s been clear since the beginning of the pandemic that your chance of getting infected with COVID outside is close to zero. (Also see here). Yet I still see a few masked people on the beach, in the park, on balconies, and walking in the neighborhood. Given the negligible risk of contracting COVID outdoors, the marginal benefit of masking outdoors is infinitesimal. Likewise, the benefit of a mask to the sole occupant of a vehicle is about zilch. Okay, some individuals might forget to remove their masks after leaving a “high-risk” environment. Sure, maybe, but cloth masks really don’t stop the dispersion of fine aerosols anywhere, indoors or outdoors. Of course, the immune-compromised have a reasonable excuse to apply the precautionary principle, but generally not outside with good air quality.

The following link provides a list of mask studies, and meta-studies. Several describe randomized control trials (RCTs). They vary in context, but all of them reject the hypothesis that masks are protective. Positive evidence on mask efficacy is lacking in health care settings, in community settings, and in school settings, and the evidence shows that masks create “pronounced difficulties” for young children and “emotional interference” for school children of all ages. Here’s another article containing links to more studies demonstrating the inefficacy of masks. Also see here. And this article is not only an excellent summary of the research, but it also highlights the hypocrisy of the “follow the science” public health establishment with respect to RCTs. Compliance is not even at issue in many of these studies, though if you think masks matter, it is always an issue in practice. Even studies claiming that cloth masks of the type normally worn by the public are “effective” usually concede that a large percentage of fine aerosols get through the masks… containing millions of tiny particles. In indoor environments with poor ventilation, those aerosols remain suspended in the air for periods long enough to be inhaled by others. That, in fact, is why masks are ineffective at preventing transmission.

Another dubious claim is that masks are responsible for virtually eliminating cases of influenza in 2020 and 2021. Again, to be charitable, masks are of very limited effectiveness in stopping viral transmission. Moreover, compliance has been weak at best, and areas without mask mandates have experienced the same plunge in flu cases as areas with mandates. A far more compelling explanation is that viral interference caused the steep reduction in flu incidence. The chance of being infected with more than one virus at a time is almost nil. Simply put, COVID outcompeted the flu.

Again, I grant that there are studies (though only a single randomized control trial out of India of which I’m aware) that have demonstrated significant protective effects. Even then, however, the mixed nature of this body of research does not support intrusive masking requirements.

Nevertheless, masks are still mandated in some jurisdictions. Those mandates usually don’t apply outdoors, however, and not in your own damn car! Mask mandates contribute to the general climate of fear surrounding COVID, which is wholly unjustified for most children and healthy working-age people. Public health messaging should focus on high-risk individuals: the elderly, the obese, and those having so-called comorbidities and compromised immune systems. Those groups have obvious reasons to be concerned about the virus. They have excuses to be germaphobic! Still, they are at little risk outdoors, the value of masks is doubtful, and breathing deep of fresh air is good for you in any case!

The incidence of COVID has declined substantially in many areas since early September, but the virus is now almost certainly endemic and is likely to return in seasonal waves. However, the Delta wave was far less deadly than earlier variants, a favorable trend many believe will continue. These charts from the UK posted by Michael Levitt demonstrate the improvement vividly. Perhaps the mask craze will fade away as the evidence accumulates.

The pandemic has been a moment of redemption for germaphobes, but no reasonable assessment of risk mitigation relative to the cost, inconvenience, discomfort, and psychological debasement of face jackets can prove their worth outdoors. Their value indoors is nearly as questionable. Yet there remains a stubborn reluctance by public health authorities to lift mask mandates. There are far too many individuals masking outdoors, and to be nice, perhaps it’s mere ignorance. But there are still a few would-be tyrants on Twitter presuming to shame others into joining this pathetic bit of theatre. I believe Anne Wheeler nailed it with this recent tweet:

“This is one of the first things you learn in OCD therapy – you don’t get to make people participate in your compulsions in order to lesson your own anxiety. It’s bizarre that it’s been turned into a virtue.”

There’s also no question that masks are still in vogue as a virtue signal in some circles, but a mask outdoors, especially, is increasingly viewed as a stupid-signal, and for good reason. I’ll continue to marvel at the irrationality of these masked alarmists, who just don’t understand how foolish they look. Give yourself permission to get some fresh air!

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