Norovirus GII.17 has rapidly overtaken GII.4 as the leading cause of norovirus outbreaks in the United States between 2022 ...

Last season got off to a particularly rocky start, with 91 suspected or confirmed outbreaks during the first week of December ...

After years of largely predictable norovirus waves, the emergence of a new strain might have disrupted the seasonal pattern ...

Dr Philippa Kaye explains what norovirus is and how best to treat it. ©News Group Newspapers Limited in England No. 679215 ...

The H5N1 avian flu virus has affected nearly 1.4 million birds. With the most recent outbreak, three of Arizona's largest layer farms have been infected, leading to the loss of more than 5 million ...