Enterovirus

It starts out like a common viral respiratory illness but leads to terrifying symptoms, including paralysis. Could a common virus be behind the illness?

The outbreak of serious respiratory illness in children was a big surprise; it was caused by an obscure virus rarely seen in the U.S. Two doctors on the front lines explain what they've learned.

Several dozen children in California and Colorado have suffered paralyzed limbs, which doctors speculate could be caused by the respiratory virus EV-68. But we're a long way from knowing for sure.

The rare virus is spreading fast, and doctors don't have an instant test to find out who has it. So parents should be ready to seek help quickly if a child has a cold that's rapidly getting worse.