What We Know About Immunity

The drug company Eli Lilly is about to start testing its Covid-19 antibody drug in nursing homes. Vaccines may not work as well on elderly people or those with compromised immune systems. Since these are the very groups most at risk for severe disease or death if they contract th ...  Show more

Earlier this year, school gates around the world slammed shut. The drastic measure worked in many places. Now, as fall approaches, attention is turning back to a pillar of a pandemic-resilient society: schools. The role of children in driving transmission of the coronavirus isn’t ...  Show more

Current COVID-19 vaccines offer great protection from serious illness, but they don't prevent people from becoming infected in the first place. Because of this, researchers have been searching for ways to boost mucosal immunity — the immune response on mucosal surfaces — as this ...  Show more

Il existe deux manières de développer une immunité au virus du Covid-19 : avoir été contaminé par ce virus ou avoir reçu deux doses de vaccin. Laquelle de ces deux méthodes est la plus efficace ?

L'infection conférerait une immunité moins efficace...

En pri ...

A recent vaccine trial from Oxford University shows promising preliminary results, suggesting the vaccine can produce immune responses that may protect people against infection. Dr. Sanjay Gupta spoke with Dr. Barney Graham, the deputy director of the Vaccine Research Center at t ...  Show more

Throughout the pandemic there’s been a big question: Will recovering from the virus or being treated by an effective vaccine provide lasting immunity? CNN Contributor Erin Bromage shares why new studies from the last few weeks make him more hopeful than ever that the answer could ...  Show more