Japan has administered more than 100 million doses of COVID-19 vaccines and surpassed the US in the proportion of elderly people fully vaccinated, Japanese government figures released on Tuesday showed.
The vaccination mark comes as Japan, like many other nations, is in the middle of a fresh wave of infections attributed to the Delta variant of SARS-CoV-2.
Japan and its capital, Tokyo, have reported record daily infection numbers for several days this month, as the Summer Olympics were drawing to a close.
Most of the new infections have been among those in their 20s and 30s, apparently showing the effect of the gap
MARCH 5: The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for .
A coronavirus variant circulating in Brazil is likely able to re-infect people who survived infections with earlier versions of the coronavirus, new data suggest.