In addition to the Marburg outbreak, which may have started with a childhood immunization program, we have to deal with “unfortunate” lab mixups:
LONDON (AP) – Thousands of scientists were scrambling Tuesday at the urging of global health authorities to destroy vials of a pandemic flu strain sent to labs in 18 countries as part of routine testing.
The rush, urged by the World Health Organization, was sparked by a slim, but real, risk that the samples, could spark a global flu epidemic. The vials of virus sent by a U.S. company went to nearly 5,000 labs, mostly in the United States, officials said.
It was not immediately clear why the 1957 pandemic strain, which killed between 1 million and 4 million people – was in the proficiency test kits routinely sent to labs.
It was a decision that Stohr described as “unwise,” and “unfortunate.”