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to sum up (from the last 2 posts)

May 23, 2021 03:19PM
from the last 2 posts.

What would help, [epidemiologist] Lipsitch [at the Harvard T.H. Chan School of Public Health] notes, is if public health experts knew the total number of cases worldwide, tested or otherwise, and how much protection those cases had from reinfection—two types of data that are still lacking. That leaves vaccination as the only way to reliably establish predictable levels of immunity in the population.

Populations develop immunity through a combination of vaccination and natural infections, Weitz [biologist at Georgia Tech] says, and the safe and ethical route to reach herd immunity is through vaccinations.

But if the virus keeps evolving or immunity fades over time, say in six months or a year after infection or vaccination, then as people become vulnerable to reinfection, transmission chains will start up again and the conditions of herd immunity would no longer be met. “Our group has taken to calling it ‘transient herd immunity,’” [epidemiologist] Lavine says.

“The reality is that we don’t know when herd immunity will occur. We haven’t had this disease before. We can’t say for sure what percentage of the population needs to be reached,” says Manisha Juthani, MD, a Yale Medicine infectious diseases specialist. “There is not a certain number or cut-off; it’s a gradient, meaning we’ll know we’ve reached it if we see the number of cases, hospitalizations, and deaths go down. An overall improvement of our numbers will tell us we are reaching that threshold.

“We need to get vaccinated as soon as we can so we can prevent the spread of COVID-19, which will also prevent the emergence of variants. It’s a race between vaccination and variants.” — Ellen Foxman, Yale Medicine pathologist

Viruses like the flu...are different from measles in that they mutate over time, meaning antibodies from a previous infection won’t provide protection for long. That’s why the flu vaccine is reformulated each year to match what is expected to be the dominant strain in the coming season. Likewise, the virus that causes COVID-19 has been mutating.

[Dr. Saad Omer, director of the Yale Institute for Global Health]: "We know there is a threat of variants. For the variants in the U.S., lab evidence suggests that these vaccines will continue to work against them. But if we continue to let this pandemic run wild in places like India, there is a probability that there will eventually be a variant against which the vaccines will be less effective.”
SubjectAuthorViewsPosted

  California Boldly Envisions A Post-Pandemic Workplace Without Masks Or Distancing

ramBRO112May 20, 2021 09:18AM

  Re: California Boldly Envisions A Post-Pandemic Workplace Without Masks Or Distancing

ramBRO31May 20, 2021 09:19AM

  Re: California Boldly Envisions A Post-Pandemic Workplace Without Masks Or Distancing

zn27May 20, 2021 11:45AM

  There won't be any restrictions when the season starts

CeeZar30May 20, 2021 11:50AM

  And just like that I find an article...

CeeZar29May 20, 2021 12:02PM

  Re: There won't be any restrictions when the season starts

zn37May 20, 2021 12:16PM

  It's not misleading. It's accurate.

PHDram30May 20, 2021 01:16PM

  Re: It's not misleading. It's accurate.

zn48May 20, 2021 01:37PM

  Not sure about that

PHDram29May 20, 2021 03:13PM

  Re: There won't be any restrictions when the season starts

CeeZar40May 21, 2021 05:08AM

  Re: California Boldly Envisions A Post-Pandemic Workplace Without Masks Or Distancing

AlbaNY_Ram37May 21, 2021 08:11AM

  Re: California Boldly Envisions A Post-Pandemic Workplace Without Masks Or Distancing

ramBRO31May 21, 2021 01:52PM

  CDPH Statement

CeeZar41May 22, 2021 11:49AM

  The Mayo Clinic on herd immunity & vaccination

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zn15May 23, 2021 03:16PM

  to sum up (from the last 2 posts)

zn19May 23, 2021 03:19PM

  the problem is not just hesitancy, it's also access

zn18May 25, 2021 03:22AM

  millions of unvaccinated Americans will keep COVID alive this summer

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  unfortunate...

LMU9324June 04, 2021 09:00AM

  You'd think with all the perks they're offering..

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