The company behind a now-discredited study on hydroxychloroquine also posted a report that has been cited by Latin American governments recommending ivermectin as a possible coronavirus treatment. Clinicians there say the effects have been extremely damaging.
Monitoring the comings and goings of aquatic life with traces of DNA in water has become an established biomonitoring technique, but scientists are now using environmental DNA to assess terrestrial animals.
A study of Shuar children in Ecuador provides a window into how the human body responds to infection in the sorts of conditions that shaped our species’ evolution.