In Germany, rapidly rising coronavirus infections have prompted action from the authorities. The capital Berlin has joined Frankfurt and Cologne on the list of cities where new cases have exceeded a key measure. Bars and restaurants have to close early, but there’s some doubt about whether the new restrictions willContinue Reading

After a relatively quiet summer, the United Kingdom is now suffering a new onslaught of Covid-19. Where the seven-day rolling average for much of the summer was regularly below 1,000 cases a day, it began increasing in September, and by October 5, the new average had reached 15,505. The countsContinue Reading

Though far from common, some patients developed worse symptoms the second time they became infected with Covid-19. Doctors treating coronavirus patients have noticed an increasing number of COVID-19 reinfections. Scientists in various countries have reported reinfections, warning that the second bout of COVID-19 will not be necessarily easier than theContinue Reading

Stay six feet apart — that’s the rule of thumb when it comes to social distancing. However, a new study suggests we need to take speech into account in addition to physical distancing when creating Covid-19 transmission mitigation strategies. By assessing the physics of saliva droplet formation and subsequent sprayContinue Reading