COVID-19 vaccines using mRNA technology do not affect fertility outcomes during in-vitro fertilization (IVF), researchers found. Other new findings suggest the bacteria living in the small intestine may contribute to the risk for long COVID after infection with SARS-CoV-2.

Kaleido Biosciences said on March 24 the company’s experimental oral treatment cut recovery time as well as hospitalizations and emergency room visits in patients with mild to moderate Covid-19, in an early trial.