Prague - An Austrian pharmaceutical firm sent a flu vaccine, which it had accidentally contaminated with the deadly H5N1 bird flu virus, for testing in the Czech Republic, a report said Tuesday.
The Austrian firm Baxter said it contaminated the vaccine with the dangerous virus by accident, likely during packaging in Austria, the Mlada Fronta Dnes daily reported, citing Baxter's representative.
Baxter shipped the infected vaccine to the Czech biomedical firm Biotest for testing on ferrets in late January.