How does norovirus spread? What are common symptoms? And how can you keep from getting sick? Here’s what to know: What is norovirus? Norovirus is a “very contagious” virus t ...

Since 2024, the U.S. has documented 66 human H5N1 cases, most of which were mild. However, a new genotype carried by migrating wild birds has caused severe infections, including one in Louisiana and ...