A case study of one infected household observed that it may take as little as three days for people to become contagious, compared with four to six days with earlier versions of the virus.
Author: Adeel Hassan
Europe is Tested by Waves of Cases that Threaten its Progress Against Pandemic
The deteriorating situation is also worrisome for the United States, as trends in new Covid cases tended to follow Europe by weeks.
Europe is Tested by Waves of Cases that Threaten its Progress Against Pandemic
The deteriorating situation is also worrisome for the United States, as trends in new Covid cases tended to follow Europe by weeks.
Britain to Ban Flights From Six African Nations as Variant Identified
The British health secretary said the ban takes effect on Friday. Earlier on Thursday, South African scientists said they had identified a new variant.
Covid Hit U.S. Meat Plants Far Harder Than Thought, Report Says
The industry had three times as many Covid infections in the pandemic’s early months as previously believed, a select committee says.
Pfizer to Vaccinate Entire City of Toledo in Brazil As Part of Study
The study will follow participants for up to one year to find out how long vaccine protection lasts against Covid-19 and new variants.
L.A. Sheriff Rejects County Vaccine Mandate for His Officers
The comments from Sheriff Alex Villanueva, a politically divisive figure, underscores the difficulty of trying to lift lagging vaccination rates among law enforcement officers across the country.