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Coronavirus variants can evade antibodies by spreading via supercells – new research

The Conversation/Reuters
Posted at Jun 10 08:35 PM

The antibodies we create after we’re infected with a virus or vaccinated against it can be very powerful.  Read more »

COVID SCIENCE: Dentures may harbor more bacteria during COVID-19

Nancy Lapid, Reuters
Posted at May 25 10:59 AM

Months after recovery from mild COVID-19, when antibody levels in the blood have declined, immune cells in bone marrow remain ready to pump out new antibodies against the coronavirus, researchers reported on Monday in Nature.  Read more »

T cells induced by COVID-19 infection respond to new virus variants: U.S. study

Julie Steenhuysen, Reuters
Posted at Mar 31 07:18 AM

CHICAGO - A critical component of the immune system known as T cells that respond to fight infection from the original version of the novel coronavirus appear to also protect against three of the most concerning new virus variants, according to a U.S. laboratory study released on Tuesday. Several recent studies have shown that certain variants of the novel coronavirus can undermine immune protection from antibodies and vaccines. Read more »

Study at Austrian ski resort finds lasting coronavirus immunity

Reuters
Posted at Feb 19 03:21 PM

A study of residents in the ski resort of Ischgl, the site of Austria's worst coronavirus outbreak, found that at least 8 months after contracting the virus, the vast majority of people remained immune, scientists who conducted it said on Thursday. Read more »

Recovered COVID patients likely protected for at least six months: study

Kate Kelland, Reuters
Posted at Feb 03 11:00 AM

LONDON - Almost all people previously infected with COVID-19 have high levels of antibodies for at least six months that are likely to protect them from reinfection with the disease, results of a major UK study showed on Wednesday. Read more »

Previous coronavirus infection may offer less protection from new variant

Tim Cocks and Alexander Winning, Reuters
Posted at Jan 19 04:07 AM

JOHANNESBURG - Previous infection with the coronavirus may offer less protection against the new variant first identified in South Africa, scientists said on Monday, although they hope that vaccines will still work. Read more »

Babies of women with COVID-19 have antibodies, say Singapore researchers

Kyodo News
Posted at Dec 19 12:42 AM

The study involved 16 pregnant women with COVID-19, aged 23 to 36 years old, to understand mother-to-baby transmission of the novel coronavirus. Read more »

COVID-19 antibodies remain in human body for 6 months: study

Kyodo News
Posted at Dec 03 02:01 AM

A Japanese university said Wednesday researchers have found that people are likely to hold antibodies for at least six months after they are infected with the novel coronavirus. Read more »

Singaporean gives birth to baby with COVID-19 antibodies - report

Reuters
Updated as of Nov 30 01:41 PM

SINGAPORE - A Singaporean woman, who was infected with the novel coronavirus in March when she was pregnant, has given birth to a baby with antibodies against the virus, offering a new clue as to whether the infection can be transferred from mother to child. Read more »

Antibodies good; machine-made molecules better?

Katherine J. Wu, The New York Times
Updated as of Nov 24 04:10 PM

Using computational tools, a team of researchers at the University of Washington designed and built from scratch a molecule that, when pitted against the coronavirus in the lab, can attack and sequester it at least as well as an antibody does.  Read more »

Immunity to the coronavirus may last years, new data hint

Apoorva Mandavilli, The New York Times
Updated as of Nov 18 12:16 PM

How long might immunity to the coronavirus last? Years, maybe even decades, according to a new study — the most hopeful answer yet to a question that has shadowed plans for widespread vaccination. Read more »

Why you shouldn’t worry about studies showing waning coronavirus antibodies

Apoorva Mandavilli, The New York Times
Posted at Oct 28 01:01 PM

Declining antibody levels after the acute infection has resolved “is the sign of a normal healthy immune response,” an immunologist said. Read more »

Some COVID survivors have antibodies that attack the body, not the virus

Apoorva Mandavilli, The New York Times
Posted at Oct 28 09:43 AM

Some survivors of COVID-19 carry worrying signs that their immune system has turned on the body, reminiscent of potentially debilitating diseases like lupus and rheumatoid arthritis, a new study has found.   Read more »

Asymptomatic virus sufferers lose antibodies sooner: study

Agence France-Presse
Posted at Oct 27 08:52 AM

Asymptomatic coronavirus sufferers appear to lose detectable antibodies sooner than people who have exhibited Covid-19 symptoms, according to one of the biggest studies of its kind in Britain published on Tuesday. Read more »

The race for an antibody against the coronavirus

Apoorva Mandavilli, The New York Times
Updated as of Oct 14 12:17 PM

Even as vaccines are hailed as our best hope against the coronavirus, dozens of scientific groups are working on an alternate defense: monoclonal antibodies. These therapies shot to prominence just this month after President Donald Trump got an infusion of an antibody cocktail made by Regeneron and credited it for his apparent recovery, even calling it a “cure.” Read more »

Regeneron antibodies in demand after Trump treatment, doctors seek more data

Deena Beasley, Reuters
Posted at Oct 08 12:33 PM

Regeneron Pharmaceuticals Inc has submitted a request to the US Food and Drug Administration for an emergency use authorization for its antibody combination. Read more »

Amazon city of Manaus may have reached 'herd immunity': study

Agence France-Presse
Posted at Sep 24 06:50 AM

SAO PAULO - The Brazilian city of Manaus, which was devastated by the coronavirus pandemic, may have suffered so many infections that its population now benefits from "herd immunity," according to a preliminary study. Read more »

Fishing boat outbreak may offer virus immunity insight: study

Kelly Macnamara, Agence France-Presse
Posted at Aug 19 02:32 AM

LONDON - Three crew of a Seattle fishing boat who were found to have antibodies able to neutralize the new coronavirus remained uninfected in an outbreak that swept through the ship, sickening most people on board, researchers have reported. Read more »

Scientists look beyond antibodies in virus immunity hunt

Paul Ricard, Agence France-Presse
Posted at Aug 08 04:54 AM

Scientists are investigating a poorly-understood immune mechanism in the body that they hope could help efforts to curb the pandemic.  Read more »

The coronavirus is new, but your immune system might still recognize it

Katherine J. Wu, The New York Times
Posted at Aug 07 09:11 AM

A flurry of recent studies has revealed that a large proportion of the population — 20 percent to 50 percent of people in some places — might harbor immunity assassins called T cells that recognize the new coronavirus despite having never encountered it before. Read more »