Six people have died after being injected with a human antibody in eastern China.
They died shortly after being given immune globulin, an antibody extracted from blood plasma that is used protect against hepatitis A.
An initial inspection of samples of the antibody confirmed there were some abnormalities, and the company that sold the drugs was ordered to stop selling them. It is as yet unknown whether any immune globulin from the same batch has been used to treat patients outside of China.
* San Jose Mercury News June 2, 2008