Infant outcomes after exposure to Tdap vaccine in pregnancy: an observational study by Helen Petousis-Harris, Tony Walls, Patricia Graham, Nicola Austin, Linda Hill

“…Information was obtained from objective sources including routine health visits and vaccination records wherever possible, as well as frequent parental reports.Setting The Canterbury region of New Zealand.Patients A cohort of 403 infants whose mothers had received Tdap vaccine.Main outcome measures Gestational age at birth, growth parameters, congenital anomalies, immunisation status and timeliness of immunisation, development of pertussis infection.Results There were no significant differences in birth weight, gestational age at birth, congenital anomalies or infant growth as compared with baseline population data. …”
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