- ...that elephant endotheliotropic herpesvirus, found mostly among young captive Asian elephants (pictured), can have a fatality rate of up to 90%?
- ...that epidemiologist Joseph L. Melnick found that polio chiefly spread through fecal contamination, usually by soiled hands, and that the poliovirus could survive for extended periods in sewage?
- ...that a global advisory committee has been monitoring rapidly developing COVID-19 vaccines against a background of growing misinformation and vaccine hesitancy?
- ...that sexual-health doctor Mags Portman and activist Greg Owen worked together to provide accessible HIV medication, preventing thousands of new HIV diagnoses in the United Kingdom?
- ...that before the Hershey–Chase experiment confirmed the role of DNA, scientists believed that genes were carried by proteins?