Tag: immunity
US researchers have found that people who have had mild illness due to Covid-19, go on to develop antibody-producing immune cells that can last for a lifetime and give them protection against the virus. ....
Pfizer and Moderna vaccines, the first two jabs authorised for emergency use against Covid-19 by the US Food and Drug Administration (FDA), produce immune responses that are both strong and potentially long-lasting, finds a study. ....
The severe outbreak of Covid-19 in Delhi this year showed not only that the Delta variant of SARS-CoV2 is extremely transmissible but that it can infect individuals previously infected by a different strains of the virus, according to a team of international scientists.....
A second Covid-19 booster dose, or the fourth jab against the virus, boosts immunity more than the initial or the third dose, according to a UK trial. ....