Some official investigations, however, have raised the question of whether the virus escaped from a lab in Wuhan. Two years ago a report by the Energy Department concluded a lab leak was the most ...

Professor Jeffrey Grossman is on a mission to get students to think critically about materials they interact with every day.

Diagnosis of UTI is confirmed by a positive culture of an appropriate urine sample; much of the existing controversy is the result of the difficulty to obtain such a sample in young children.

Data are accumulating that emphasize the important role of the intestinal barrier and intestinal permeability for health and disease. However, these terms are poorly defined, their assessment is a ...