Reuters: UK study finds evidence of waning antibody immunity to COVID-19 over time

Reuters: UK study finds evidence of waning antibody immunity to COVID-19 over time. “Antibodies against the novel coronavirus declined rapidly in the British population during the summer, a study found on [October 27], suggesting protection after infection may not be long lasting and raising the prospect of waning immunity in the community.”

Trump’s COVID Advisers: He’s Now Pushing Herd Immunity (Daily Beast)

Daily Beast: Trump’s COVID Advisers: He’s Now Pushing Herd Immunity. “Despite publicly downplaying it, President Donald Trump and his team of White House advisers have embraced the controversial belief that herd immunity will help control the COVID-19 outbreak, according to three senior health officials working with the White House coronavirus task force. More worrisome for those officials: they have begun taking steps to turn the concept into policy.”

The Guardian: Herd immunity letter signed by fake experts including ‘Dr Johnny Bananas’

The Guardian: Herd immunity letter signed by fake experts including ‘Dr Johnny Bananas’. “The Great Barrington declaration, which was said to have been signed by more than 15,000 scientists and medical practitioners around the world, was found by Sky News to contain numerous false names, as well as those of several homeopaths. Others listed include a resident at the ‘university of your mum’ and another supposed specialist whose name was the first verse of the Macarena.”

Washington Post: Proposal to hasten herd immunity to the coronavirus grabs White House attention but appalls top scientists

Washington Post: Proposal to hasten herd immunity to the coronavirus grabs White House attention but appalls top scientists. “A senior administration official told reporters in a background briefing call Monday that the proposed strategy — which has been denounced by other infectious-disease experts and has been called ‘fringe’ and ‘dangerous’ by National Institutes of Health Director Francis Collins — supports what has been Trump’s policy for months.”

The Guardian: Flurry of coronavirus reinfections leaves scientists puzzled

The Guardian: Flurry of coronavirus reinfections leaves scientists puzzled. “So far, only two dozen or so reinfections have been confirmed worldwide in a pandemic that has infected more than 30 million people. For now at least, reinfection seems uncommon. But scientists point out that confirming reinfection is no easy task and many cases are missed.”

Washington Post: Fewer than 1 in 10 Americans show signs of past coronavirus infection, large national study finds

Washington Post: Fewer than 1 in 10 Americans show signs of past coronavirus infection, large national study finds. “Fewer than 1 in 10 Americans showed signs of past infection with the novel coronavirus as of late July, suggesting that most of the country may still be vulnerable to infection, according to one of the largest studies of its kind published [last month] in the journal the Lancet.”

Reuters: In Brazil’s Amazon a COVID-19 resurgence dashes herd immunity hopes

Reuters: In Brazil’s Amazon a COVID-19 resurgence dashes herd immunity hopes. “The largest city in Brazil’s Amazon has closed bars and river beaches to contain a fresh surge of coronavirus cases, a trend that may dash theories that Manaus was one of the world’s first places to reach collective, or herd, immunity. When a large portion of a community becomes immune to a disease, its spread becomes unlikely. University of Sao Paulo researchers suggested that a drastic fall in COVID-19 deaths in Manaus pointed to collective immunity at work, but they also believe that antibodies to the disease after infection may not last more than a few months.”

MIT Technology Review: A city in Brazil where covid-19 ran amok may be a ‘sentinel’ for the rest of the world

MIT Technology Review: A city in Brazil where covid-19 ran amok may be a ‘sentinel’ for the rest of the world. “What happens when a major city allows the coronavirus to rage unchecked? If the Brazilian city of Manaus is any answer, it means about two-thirds of the population could get infected and one person in 500 could die before the epidemic winds down.”

Bloomberg: Herd Immunity May Be Developing in Mumbai’s Poorest Areas

Bloomberg: Herd Immunity May Be Developing in Mumbai’s Poorest Areas. “Around six in ten people living in some of India’s biggest slums have antibodies for the novel coronavirus indicating they’ve recovered from infection, in what could be one of the highest population immunity levels known worldwide. The findings, from a July serological survey of 6,936 people across three suburbs in India’s financial center of Mumbai, may explain why a steep drop in infections is being seen among the closely-packed population, despite new cases accelerating overall in the hard-hit country.”

CNET: Can herd immunity help stop coronavirus? What we know now

CNET: Can herd immunity help stop coronavirus? What we know now. “Let’s explore what herd immunity looks like, what it means for COVID-19 and how the world can get there, explained by Dr. Jane Orient, executive director of the American Association of Physicians and Surgeons; Dr. Joseph Vinetz, a Yale Medicine infectious disease specialist; and the Centers for Disease Control and Prevention.”

New York Times: Can You Get Covid-19 Again? It’s Very Unlikely, Experts Say

New York Times: Can You Get Covid-19 Again? It’s Very Unlikely, Experts Say. “It may be possible for the coronavirus to strike the same person twice, but it’s highly unlikely that it would do so in such a short window or to make people sicker the second time, they said. What’s more likely is that some people have a drawn-out course of infection, with the virus taking a slow toll weeks to months after their initial exposure.”

The Atlantic: How Long Does COVID-19 Immunity Last?

The Atlantic: How Long Does COVID-19 Immunity Last?. “Terrified, I read the study that launched a thousand headlines—and did not come away much less terrified. Researchers at King’s College London had tested more than 90 people with COVID-19 repeatedly from March to June. Several weeks after infection, their blood was swimming with antibodies, which are virus-fighting proteins. But two months later, many of these antibodies had disappeared…. I called several scientists to talk me through the study and ease my apocalyptic anxiety. Their response: Please calm down—but don’t expect us to make you feel entirely relaxed.”

Vox: My patient caught Covid-19 twice. So long to herd immunity hopes.

Vox: My patient caught Covid-19 twice. So long to herd immunity hopes.. “‘Wait. I can catch Covid twice?’ my 50-year-old patient asked in disbelief. It was the beginning of July, and he had just tested positive for SARS-CoV-2, the virus that causes Covid-19, for a second time — three months after a previous infection. While there’s still much we don’t understand about immunity to this new illness, a small but growing number of cases like his suggest the answer is ‘yes.'”

Business Insider: Sweden’s prime minister orders an inquiry into the failure of the country’s no-lockdown coronavirus strategy

Business Insider: Sweden’s prime minister orders an inquiry into the failure of the country’s no-lockdown coronavirus strategy. “Sweden’s prime minister has ordered an inquiry into the country’s decision not to impose a coronavirus lockdown after the country suffered thousands more deaths than its closest neighbours.”