The Xinhuanet Chinese news agency reports that four volunteers are in good health following injections of the world's first clinical test of a severe acute respiratory syndrome (SARS) vaccine.
The three male and one female students from Beijing based universities, were injected with either a SARS vaccine or a SARS-virus free placebo Saturday afternoon. The volunteers will be monitored for the next 210 days.
Approving the first phase of the clinical testing in January this year, China has become the first nation in the world to approve clinical testing of the vaccine on humans.
The vaccine was developed by Beijing Kexing Bio-product Co., Ltd