More than 50 students at a primary school in Sixian County, east China's Anhui Province, reported ailment, including vomit, dizziness and limb feebleness, about three hours after they were injected Hepatitis A vaccines last Friday.

By Sunday afternoon, the students had not yet recovered from the illness, and at least 30 of them were hospitalized.

Local doctors considered the students' ailment normal allergic symptoms, and began to use antibiotic on the children.

The Hepatitis A vaccine concerned has been sent to Hefei, capital of the province, for examination. Experts in Anhui and nearby Jiangsu Province have been invited to the county to assist the medical treatment for the ill students.

(Xinhua News Agency June 20, 2005)