BEIJING (AP) — Chinese investigators say tests on a batch of a plasma product feared to have been contaminated with HIV have turned up negative for the virus that causes AIDS.

The result appears to have headed off the possibility of yet another scandal involving medical products in the country. Incidents include the falsifying of production records for rabies vaccines that prompted a nationwide crackdown on the industry.

A statement Thursday from the National Medical Products Administration says tests for HIV, hepatitis B and hepatitis C all turned out negative.

The samples were from a batch of 12,000 plasma products manufactured by Shanghai-based China Meheco Xinxing Pharma Co., Ltd.

During the 1990s and earlier 2000s, thousands of Chinese were infected with HIV when they sold blood that was pooled and the plasma removed.