Rapid home Covid-19 tests promise convenience and speed, but the accuracy of the tests depend on how and when you take them. WSJ's Daniela Hernandez explains everything you need to know about at-home testing and how to get accurate results. Illustration: David Fang and Jacob Reynolds
BERLIN—Germany kept Covid-19 infection rates relatively low this past summer—a feat experts say might be driving a record surge in infections in the country that has prompted fears that hospitalizations and deaths could spiral in the colder months ahead.
Infections are rising again in Europe, as colder temperatures and the fading of vaccine-induced immunity drive renewed case loads.
