Gastroenteritis!

Gastroenteritis, an illness which leaves people vomiting and with diarrhea, has reached a record high level, according to the National Institute of Infectious Diseases.

Japan's more than 3,000 pediatric clinics reported that from Nov. 20 to 26 there was an average of 19.8 outbreaks of the norovirus-caused disease, the highest figure since records began in 1981.

Experts warn that gastroenteritis normally peaks from late-December and fear the worst of the outbreak may be yet to come.