Twenty-two children are dead and more than 3,500 more are ill in Eastern China due to a virus that has been spreading since March.

The New York Times reported that the intestinal virus, enterovirus 71, or EV-71, is found in children under 6, and mostly in those under 2. It causes fever, mouth ulcers, and blisters on the hands, feet and buttocks. The virus can lead to further complications including lung complications, brain swelling and paralysis in severe cases.

According to the World Health Organization there is no cure, but most in most cases, children recover in about a week.

Reports say that 970 children are hospitalized, and officials expect the infection to continue to spread, as it thrives in warm weather.

The WHO stated, "Public health experts predict that the number of cases will continue to increase and will peak around June-July. "

A public awareness campaign has been enacted, and officials are stressing the importance of personal hygiene, with an emphasis on hand washing and disinfection of soiled surfaces.

The WHO said there is no need to restrict travel or trade.