DEAR
PRESIDENT BUSH:
CHIRON IS HEADQUARTERED IN EMERYVILLE, CALIFORNIA
by Virginia McCullough © 2004
Virginia McCullough ©
20/18/04
vmccullough@hotmail.com
Iowa scientist: Caution wise if serum is contaminated
by Tony Leys, staff writer, DesMoines Register, © October 8, 2004
The type of bacteria
that reportedly contaminated millions of doses of flu vaccine could have caused
serious trouble if spoiled vaccine had been injected into patients' arms, one of
Iowa's top scientists said Thursday.
Dr. Mary Gilchrist, director of the University of Iowa Hygienic Laboratory, said
she wasn't surprised to hear that
Serratia
bacteria were being
blamed for the problems.
Serratia thrive in liquid, she said, and they are a common problem in
hospitals. Some strains have become resistant to antibiotics. That could allow
them to overcome precautions taken in the manufacturing and packaging of flu
vaccine.
People often ingest
Serratia bacteria
from tainted food or beverages. That's rarely a major problem, Gilchrist said,
because the human digestive system does a good job of flushing the germs out.
"They're not a terribly bad player, but having them injected right into your
body is not something you would want to happen," she said. If the germs wound up
in muscle tissue, they could cause serious infections.
Gilchrist said that if the serum is tainted with
Serratia
bacteria, British
officials made the right call in withholding millions of doses.
She hopes the problem raises enthusiasm for developing better vaccine
production methods.
The old techniques take months, which complicates annual efforts to formulate
vaccines that match current flu viruses.
Faster, more modern methods also could be less susceptible to contamination by
bacteria.