#antibodies

Evidence is growing that contracting SARS-CoV-2 is generally as effective as vaccination at preventing COVID-19.

People who received the Moderna COVID-19 vaccine had strong immune memory of SARS-CoV-2 six months after vaccination.

This is a good time to talk about how sleep can affect the body’s immune response to a vaccination.

Bamlanivimab and etesevimab may be given to people with mild to moderate COVID-19 who are at high risk for progression to severe disease.

More than 95% of people who recovered from COVID-19 had durable immune system memory up to eight months after infection.

Another vaccine, from Novavax, was 89% effective in a U.K. trial, but both were less potent against the South African coronavirus mutation.

Long-lived memory immune cells continue to provide protection even after antibody levels drop.

People who have had evidence of a prior infection appear to have some degree of protection against being reinfected with the virus.

Immune cells called T cells helped prevent reinfection and may be especially important if antibody levels are low or decline over time.

Agency grants emergency authorization for antibody cocktail given to President Trump.

Bamlanivimab is now authorized for nonhospitalized people at high risk for progressing to severe COVID-19.

The treatment reduced coronavirus levels and sped up recovery in a clinical trial.

Herd immunity occurs when enough people are immune to a disease that it is unlikely to spread within a population.

Antibody analysis may provide guidance for developing vaccines and antibodies as treatments for COVID-19.

Tests like the one approved this week can show who is likely to be immune, but it’s not yet clear how long such immunity lasts.

“There are thousands of survivors like myself who would love to be part of an organized effort to help fellow patients and their families.�...