BJOG : an international journal of obstetrics and gynaecology
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Multicenter Study Comparative Study
Critical illness with AH1N1v influenza in pregnancy: a comparison of two population-based cohorts.
To compare admissions to intensive care units (ICUs) with confirmed AH1N1v influenza in pregnancy in Australia, New Zealand and the UK. ⋯ The difference in admission risk may reflect a second phase effect from successful clinical and public health interventions, as well as differences in population characteristics between the countries. The overall severity of the AH1N1v influenza infection in pregnancy is evident, and emphasises the importance of an ongoing immunisation programme in pregnant women in both northern and southern hemispheres.