#antibodies

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.�...

The digestive system breaks down all the molecules we eat—except the antibodies we ingest in breast milk.

Future clinical trials will explore whether cellular and antibody-based therapies can be beneficial as earlier-stage treatments.

First tried in advanced melanoma, monoclonal antibodies have extended some patients’ survival as much as 10 years.