The safety measures have taken on new urgency in recent weeks as new infections, hospitalizations and deaths rise across the U.S. and Europe, and potentially more-transmissible variants of the virus spread around the globe. Early in the pandemic, testing was limited to people with symptoms, also partly due to shortages. The current scientific playbook follows from two of the biggest research insights since the start of the pandemic. Secondly, researchers now know that tiny airborne particles known as aerosols play a role in the spread of Covid-19. Temperature checks have become less popular among some employers because scientists now know that not all Covid-19 patients get fevers.

Source: Mint January 27, 2021 10:51 UTC