PLATCOV, a platform to assess the effectiveness of drugs against COVID-19, suggests that ivermectin has no significant antiviral activity against SARS-CoV-2.
Just one or two mutations with strong effects, or an accumulation of mutations with small effects, may help the Omicron variant of SARS-CoV-2 dodge the immune system or antibody-based therapies.
An analysis of cancer diagnosis and treatment highlights inconsistencies in the way lag times are calculated and suggests more standardised approaches are needed.
Infection with a common bacteria linked with periodontal disease, oral cancers, and bad breath may cause a small increase in the risk of cardiovascular disease.
A follow-up study of cancer patients after COVID-19 suggests that one in two experienced long COVID, but few required hospital admission and most could be managed as outpatients.
Studying the evolution of eggshells in living and extinct flightless birds such as emus and ostriches may provide insights on the evolution of some egg-laying dinosaurs.