As Vaccination Rates Lag, Delta Variant Presents New Challenges

Photo: President Joe Biden holds up a face mask as he delivers remarks on his administration’s effort to get more Americans vaccinated on July 29, 2021. Credit: Anna Moneymaker/Getty Images. “Article by Tom Zeller Jr. Undark – July 30, 2021.

In our weekly news roundup: delta variant prompts new mask guidance, France suspends prion research, and more.

It was a week of drawing lines. On one side were the 189 million Americans — roughly half of the population overall, and about 70 percent of adults — who have been at least partly vaccinated against SARS-CoV-2, the virus behind the seemingly endless Covid-19 pandemic. On the other […]

Click here to view original web page at undark.org