Tag Archives: herd immunity

Why Herd Immunity Won’t Save Us : Short Wave : NPR

>Fact Check: Johns Hopkins Graph Misinterpreted, Shared With Claim Of Herd Immunity Attained In USA Against COVID-19

>Coronavirus Today: The costs of herd immunity – Los Angeles Times

>Dr. Fauci On COVID ‘Herd Immunity’ | Moms.com

>Herd Immunity to COVID-19 Fails to Materialize in Sweden

“This pandemic has upended our world. It’s cost millions of people their jobs, closed schools, taken a lot of lives. It’s had such a huge effect in such a short period of time, so it’s understandable that many people comfort themselves by thinking this will pass; sooner or later, this virus will just go away.

13 minute podcast and Read full story of excerpts below at Source: >Why Herd Immunity Won’t Save Us : Short Wave : NPR

as good as herd immunity might look on paper, the real world is turning out to be a lot more complicated. All over the globe, millions are being infected, but the coronavirus is still here… “I think it’s going to be with us probably forever at this point. I mean, at a global scale, it’s going to be with us, and it’s how we decide to live with it… “herd immunity – what it is, why it became so popular in this pandemic and why it probably just isn’t going to happen.

“as soon as governments start floating these ideas of letting the virus pass through the population, scientists start projecting astronomical death counts that would result. And so herd immunity as an official policy basically dies before it ever gets started. There is just no way politically to embrace the strategy

“But the idea of natural herd immunity doesn’t really die. And this is what I find interesting. There’s still this sort of idea that somehow, the virus will eventually just vanish. And you’ve been hearing this a lot in recent weeks

Sweden never officially pursued a herd immunity approach, but they got kind of as close as any country has. They had this really light lockdown. They limited gatherings to 50 people or less, kept everything open with minor restrictions, like table-only seating at restaurants. And in the spring, Swedish officials were bragging that Stockholm might effectively reach herd immunity by the end of May.

Blood tests showed not that many people in Sweden have been infected with the coronavirus. It’s maybe 5%. And for natural herd immunity for this virus, that number has to reach more like 50% to 80%. Meanwhile, Sweden has had higher death rates than its Nordic neighbors like Norway, and their economy is suffering badly. So this has not worked well in practice.

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WHO: ‘No Evidence’ COVID-19 Antibodies Stop Re-infection | Time


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“Catching COVID-19 once may not protect you from getting it again, according to the World Health Organization, a finding that could jeopardize efforts to allow people to return to work after recovering from the virus. “There is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected from a second infection,” the United Nations agency said in an April 24 statement.

“The WHO guidance came after some governments suggested that people who have antibodies to the coronavirus could be issued an “immunity passport” or “risk-free certificate” that would allow them to travel or return to work, based on the assumption that they were safe from re-infection, according to the statement. People issued such a certificate could ignore public-health guidance, increasing the risk of the disease spreading further.

“Chile was the first country to announce plans to issue immunity cards based partly on antibody tests. This has raised concerns because the tests have proven unreliable elsewhere, and some people may get deliberately ill in order to obtain the card.

“The U.S. and others have nonetheless said they’re looking into the option. While there’s a consensus that the key to ending the coronavirus pandemic is establishing co-called herd immunity, there are many unknowns. One is whether researchers can develop a safe and effective vaccine. Another is how long people who’ve recovered have immunity; reinfection after months or years is common with other human coronaviruses.

“Finally, it’s not clear what percentage of people must be immune to protect the “herd.” That depends on the contagiousness of the virus. The WHO said it’s reviewing the scientific evidence on antibody responses to coronavirus, but as yet no study has evaluated whether the presence of antibodies “confers immunity to subsequent infection by this virus in humans.” And while many countries are currently testing for antibodies, these studies aren’t designed to determine whether people recovered from the disease acquire immunity, the agency said.

Read full story at Source: >WHO: ‘No Evidence’ COVID-19 Antibodies Stop Re-infection | Time