Immunity acquired from a Covid infection provides strong, lasting protection against the most severe outcomes of the illness, according to research published Thursday in The Lancet — protection, ...

The protection conferred by natural immunity, vaccination, and both against symptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with the BA.1 or BA.2 sublineages of the ...

Vaccines today are more efficient and contain far fewer stimulants to the immune system than some used decades ago. By Apoorva Mandavilli It’s an idea as popular as it is incorrect: American babies ...

Vaccination is the most powerful and effective tool in modern medicine against infectious diseases. By triggering the body's immune system, vaccines prevent disease and its complications and save ...

It is a myth that the COVID-19 vaccine weakens the immune system. After someone receives a vaccine, their immune system is better equipped to protect against subsequent infections. Although there are ...

New research has advanced COVID-19 vaccine work in several ways: using a modified live attenuated mumps virus for delivery, showing that a more stable coronavirus spike protein stimulates a stronger ...

The COVID-19 vaccine provides a high degree of protection for at least several months. Booster shots help them retain immunity from the virus. As of November 2022, more than 80% of the United States ...