Again my friend, this deserves reposting.Even after listening to the video.
There are several reasons why herd immunity isn’t the answer to stopping the spread of the new coronavirus:
- There isn’t yet a vaccine for SARS-CoV-2. Vaccinations are the safest way to practice herd immunity in a population.
- The research for antivirals and other medications to treat COVID-19 is ongoing.
- Scientists don’t know if you can contract SARS-CoV-2 and develop COVID-19 more than once.
- People who contract SARS-CoV-2 and develop COVID-19 can experience serious side effects. Severe cases can lead to death.
- Doctors don’t yet know exactly why some people who contract SARS-CoV-2 develop severe COVID-19, while others do not.
- Vulnerable members of society, such as older adults and people with some chronic health conditions, could get very sick if they’re exposed to this virus.
- Otherwise healthy and younger people may become very ill with COVID-19.
- Hospitals and healthcare systems may be overburdened if many people develop COVID-19 at the same time.
- It isn’t the answer for this virus.
I watched the video, and she really doesn't address any of those points. Her main focus was following the example of other coronaviruses, but a little searching through Pubmed and UptoDate puts some serious dents in her claims. For one, there are 7 other known coronaviruses that infect humans. Four of these cause mostly mild cold-like illnesses. I could not find any published papers that tracked antibody prevalence (probably because nobody would bother for such minor diseases), so I don't know how she can claim that herd immunity for these exist. And the very fact that these viruses recur seasonally effectively means enduring human herd immunity doesn't exist.
For the other two non-COVID-19 coronaviruses known to infect humans, herd immunity almost certainly does not exist anywhere. SARS was never widespread enough. We don't know exactly why the disease is effectively extinct in humans, but the leading theories are because the limited population that was exposed was effectively quarantined and contact-traced, while virus itself quickly mutated into a far less virulent form. MERS, which has a much higher fatality rate at about 30%, fortunately requires more sustained close contact to catch. This made containing the outbreak much easier, especially once they realized that camels were the primary natural reservoir.
She then bizarrely claims that Zika was an example of a coronavirus to which we have achieved herd immunity. First of all, Zika belongs to the
Flaviviridae family
. Second, although Zika caused a scare a few years ago, it at most infected a little over 5,000 individuals in the US, almost all whom acquired it abroad. Plus, mosquitoes are the primary vector, with human-to-human transmission being mostly limited to congenital infections, and sexual contact. It remains endemic in various parts of the world, which strongly argues against human herd immunity.
She also equates criticism with
ad hominem attacks, but when asked to provide peer-reviewed evidence to back up her claim, she provides only one paper that was about a technique for antibody detection, and a few papers that were rejected for publication. Gee, how convenient.
Finally, although I think it is better to carry on debate focusing on the merits of the arguments rather than speculating on possible financial motives, but holy crap, in this case, the source of the Great Barrington Declaration can not be ignored. The Declaration came not from a respected medical or scientific society, but the American Institute for Economic Research, which is primarily a libertarian, free-market think tank that usually deals with... well, economic policy, not public and preventative health. Some of the sponsors of the American Institute for Economic Research include respected fortune 500 companies... and it also includes some less than savory characters, like Philip-Morris and the Koch brothers.