In a study published in Ophthalmology, physicians followed 562 patients in the United States and India over a three-month period to identify risk factors that could be easily managed with early intervention.

Maria A. Woodward, M.D., an associate professor of ophthalmology and visual sciences and a member of the Institute for Healthcare Policy and Innovation, answers questions about what causes microbial keratitis, symptoms and preventative measures.

An international team led by the University of California San Diego has identified a potential microbial culprit behind the alarming rise in early-onset colorectal cancer: a bacterial toxin called colibactin. Scientists report that exposure to colibactin in early childhood imprints a distinct genetic signature on the DNA of colon cells—one that may increase the risk of developing colorectal cancer before the age of 50.