Coronavirus

published on Wednesday in Nature, suggest that men, particularly those over age 60, may need to depend more on vaccines to protect against the infection.“Natural infection is clearly failing” to spark adequate immune responses in men, said Akiko Iwasaki, an immunologist at Yale University who led the work.The results are consistent with what’s known about…

At least three people this week were infected with COVID-19 a second time, throwing into question what we know about immunity to the deadly virus. While reinfections have been reported in the past, including some in South Korea in May, it later emerged that the cases were likely a result of false positives during testing.…

Some shortcuts are being taken in the race to get a coronavirus vaccine approved, but there are also more resources, openness and scrutiny than ever before Health 26 August 2020 By Michael Le Page A volunteer in Soweto, South Africa, taking part in the Oxford vaccine trialFelix Dlangamandla/Gallo Images via Getty Images US PRESIDENT Donald…

Health | Analysis 25 August 2020 By Jessica Hamzelou Commuters wearing face coverings in Hong KongLam Yik/Bloomberg via Getty Images A 33-year-old, healthy man is the first person confirmed to have caught the coronavirus twice, according to unpublished research from the University of Hong Kong. As details of the case emerge, researchers say there is still much…

Scientists are expressing some doubts about the Food and Drug Administration's emergency use authorization for convalescent plasma as a treatment for Covid-19 patients. In a Sunday news briefing, President Donald Trump touted the treatment as a "breakthrough." Former FDA chief Dr. Scott Gottlieb told CNBC that while there was enough data to justify the authorization, the…