BEIJING, Jul 4 (AP) -- China confiscated 170 boxes of questionable vaccines just weeks after an immunization drive left one child dead, state media reported Monday.

The find comes as China is battling a surge in counterfeit or shoddy foods, medicines and other goods, many of which pose public safety threats.

A routine checkup of medicine in the western city of Xi'an last Friday turned up the boxes with 50,000 vaccines inside, the official Xinhua News Agency said. The report didn't say what kind of vaccinations were involved, though the boxes were labeled with names of manufacturers of traditional medicine.

The inspectors became suspicious when the packaging showed names of factories, addresses and telephone numbers that didn't match, the agency said, without elaborating.

When authorities contacted the transportation firm that had been handling the medicine, they gave yet another address for their customer.

The inspectors are still investigating the origin and the composition of the vaccines, the report said.

Last month, one child died and more than 200 became ill after receiving a hepatitis A vaccine in central China. The vaccine was purchased from a private, unlicensed vendor who has since disappeared.

All but 40 of the students who fell ill have left hospital, the Beijing Daily Messenger reported Monday.

Just last week, a vaccine for a type of hemorrhagic fever sickened 44 school children in northern China.