Novel Influenza A (H1N1) Virus Infections in Three Pregnant Women--United States, April to May 2009

During seasonal influenza epidemics and previous pandemics, pregnant women have been at increased risk for complications related to influenza infection. In addition, maternal influenza virus infection and accompanying hyperthermia place fetuses at risk for complications such as birth defects and preterm birth. As part of surveillance for infection with the novel influenza A (H1N1) virus, the US Centers for Disease Control and Prevention initiated surveillance for pregnant women who were infected with the novel virus. This report, published in Morbidity and Mortality Weekly Report, provides preliminary details of three cases of novel influenza A (H1N1) virus infection in pregnant women in the United States from April to May 2009.

Author(s): US Centers for Disease Control and Prevention

Published: 2009