No signs of HIV in immunity booster

Samples of an immunity-boosting blood product that were suspected of being contaminated by HIV have been found to be free of the virus through nucleic acid tests, China's top drug watchdog announced on Thursday.

The product - immunoglobulin - is extracted from human blood plasma for intravenous injection into a patient to boost the person's immunity.

Earlier, on Tuesday, the National Health Commission told the National Medical Products Administration that HIV antibodies had been found in a batch of human immunoglobulin produced by Shanghai-based China Meheco Xinxing Pharma Co. The presence of the antibody suggests the presence of HIV.