Federal health officials in the US are warning doctors and parents that a dangerous virus is spreading across the US causing fevers, seizures, confusion and other "sepsis-like" issues that can be life-threatening for young infants. The Centers for Disease Control and Prevention (CDC) said Tuesday that parechovirus is currently circulating in "multiple" US states. So far, the CDC has only collected positive samples of PeV-A3, which is the specific type of parechovirus that is most often associated with severe disease. At least one newborn is dead in Connecticut.