-- Robert Preidt
TUESDAY, Feb. 21 (HealthDay News) -- Giving flu shots to
pregnant women seems to reduce their risk of having a baby that is
small for its gestational age, a new study has found.
Babies who are small for their gestational age have an increased
risk of health problems and other issues throughout their
The study included 340 pregnant women in Bangladesh who were
divided into two groups -- 170 who received the flu vaccine and 170
who received a different vaccine that does not protect against the
flu. All of the women were in their third trimester.
When the seasonal influenza virus was circulating in the
population, the flu vaccine group had fewer babies who were small
for their gestational age than the other group -- about 26 percent
versus 45 percent.
The percentage of small-for-gestational-age births was similar
in both groups when the influenza virus was dormant, according to
the study published Feb. 21 in
CMAJ (Canadian Medical Association Journal).
When the influenza virus was circulating, the mean birth weight
was 7 pounds in the flu vaccine group and 6.6 pounds in the group
that didn't get flu shots, the investigators found.
"Our data suggest that the prevention of infection with seasonal influenza in pregnant women by vaccination can influence fetal growth," Dr. Mark Steinhoff, of Cincinnati Children's Hospital Medical Center in Ohio, and colleagues wrote in their report.
If further research supports these findings, adding a flu
vaccine to routine vaccinations during pregnancy could help give
children a better start in life, the study authors suggested in a
journal news release.
The March of Dimes has more about
low birth weight.
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