Baby
Vaccine Contaminated With Pig Virus
The US Food and Drug Administration
(FDA)
has reported that stocks of Merck's
Rotateq
vaccine against rotavirus are
contaminated
with the pig viruses PCV1 and PCV2.
But the
agency has not advised doctors to
stop using
it as the pig viruses aren't known
to cause
disease in humans, and rotavirus
kills
roughly half a million infants
worldwide
each year. An FDA advisory panel
said the
vaccine's benefits still outweigh
its risks.
The FDA plans to monitor recipients
for pig
virus-related illness. "There will
be
quite careful monitoring of the
people that
have received the vaccine and I
think that's
entirely appropriate," says
virologist
Stephen Hughes, who advised the FDA
on the
issue. Rotavirus vaccines are mainly
given
to infants in the developing world,
where
the virus is most likely to kill. In
March,
a separate rotavirus vaccine,
Rotarix, made
by GlaxoSmithKline was found to
contain
PCV1. In that case, the FDA
recommended that
doctors avoid using Rotarix while it
gathers
evidence, but the FDA now says it
will issue
new recommendations on both affected
vaccines soon