#antibodies

The CDC recommends that everyone ages 13 to 64 get a routine HIV test at least once.

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.

The entertainer initially tested negative for the virus, but a second test confirmed her diagnosis even though she exhibited no symptoms.

Plasma from recovered patients recently received a controversial FDA emergency use authorization as a potential treatment for COVID-19.

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.

Federal researchers describe two paths to a vaccine—and one of them uses high-tech computers to design a vaccine candidate!