A modeling study of boarding behavior finds filling the plane from back to front extends the close contact time between passengers and therefore increases the risks posed by air travel.
Organizers have cancelled conferences, COVID-19 quarantines have prevented some scientists in China from visiting their labs, and travel restrictions have left researchers stranded.
The World Health Organization reports zero laboratory-confirmed infections stemming from the Games in Rio, noting, however, that some cases may have gone undetected.
Louisiana state health officials ask anyone who has visited Liberia, Sierra Leone, or Guinea in the past 21 days to skip next week’s meeting on tropical diseases in New Orleans.
The second healthcare worker to have contracted Ebola within the U.S. flew on a commercial airline after having cared for a Dallas patient who died from the virus.