Immunity gained after a natural infection is short-lived and remaining unvaccinated can increase the risk of getting re-infected with Covid-19, suggests a study published in the journal The Lancet Microbe.Throughout the Covid-19 pandemic, there .
The US surpassed 700,000 deaths from Covid-19 on Friday, 108 days after the country reached 600,000 deaths from the virus, according to data from Johns Hopkins University.
For unvaccinated, reinfection by SARS-CoV-2 is likely, study finds yale.edu - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yale.edu Daily Mail and Mail on Sunday newspapers.
Jawless lamprey takes a bite out of cancer gene evolution phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.