News

AddToAny

Google+ Facebook Twitter Twitter

Immunity after Covid

There has been uncertainty about how long immunity lasts after someone who is unvaccinated is infected with SARS-CoV-2.

Now a team of scientists led by Yale School of Public Health and the University of North Carolina at Charlotte has published a study indicating strong protection following natural infection is short-lived.

“Reinfection can reasonably happen in three months or less,” said Jeffrey Townsend, the Elihu Professor of Biostatistics at the Yale School of Public Health and a lead author of the study. “Therefore, those who have been naturally infected should get vaccinated. Previous infection alone can offer very little long-term protection against subsequent infections.”

The study is the first to determine the likelihood of reinfection following natural infection and without vaccination.

bit.ly/3mqZc7x

Image credit | iStock

Related Articles

A dark winter ahead?

The NHS faces a tough winter. Already under pressure from the backlog of cases that built up during the pandemic, the spectre of a COVID resurgence, along with the usual seasonal flu, threatens to overwhelm services.

Diagnosing children’s cancer in the pandemic

A study of cancer in children and young adults in England has found that fewer patients were diagnosed during the COVID-19 pandemic.

Natural killer cells vs. macrophages

New knowledge about naturally acquired malaria immunity may improve vaccines, it is claimed.

A time for reflection

David Wells looks back over his first six months as Chief Executive of the IBMS.

Top