Common and highly contagious illnesses are reaching several-month highs. Norovirus has almost reached a several-year record.
Norovirus, or Norwalk virus, is a foodbourne illness that usually develops symptoms of gastroenteritis within 12 to 48 hours.
Genetic analysis of H5N1 bird flu virus that infected a Canadian teenager shows 'worrisome' mutations, new studies reveal.
The CDC is piloting a disease forecasting service called Insight Net. Could it be a game-changer for public health?