5 Things to know about the Delta variant
For the first time in more than a year, we’re feeling some hope—or at least cautious optimism—that the pandemic could recede to the background. But experts want us to know that there is still a concern that new mutations of the virus could bring it back, and it might be even stronger.
A major concern right now is Delta, a highly contagious (and possibly more severe) SARS-CoV-2 virus strain, which was first identified in India in December. It then swept rapidly through that country and Great Britain as well. The first Delta case in the United States was diagnosed a couple of months ago (in March) and it is now the dominant strain in the U.S.
Source credit: yalemedicine.org