The woman may have had a link to another person, who was married to an Ebola survivor and who died a few days previously in Democratic Republic of Congo.

A study of people in Sierra Leone suggests that the virus can lie in hiding from the immune system before re-emerging later and sparking a new response—although researchers didn’t examine whether this could make people infectious again.

A model scenario concludes that frequent testing with fast turnaround is key to avoiding campus outbreaks of COVID-19, even if the tests are imperfect.

Linda Saif will give a historical overview of SARS spillovers from animals to humans, and Neville Sanjana will describe recent work on a SARS-CoV-2 spike protein variant that increases human infectivity.

Reports of the infection—including one death this month—recently shook up social media. But, unlike COVID-19, plague is a disease that countries have more or less got under control.

The medical scientist made important contributions to polio treatment and Australian environmental policy—despite substantial resistance.

Milder, cold-causing members of this pathogenic viral family long remained under the radar, although they aren’t entirely harmless.

Abbott’s ID NOW test missed the most positive samples among five products given the green light by the FDA to use during the pandemic.