the significant association with myocardial involvement in both women demonstrates the increased risk of exposure to H 1 N 1 influenza virus in pregnant women .
This highlights the need for health care providers to increase awareness amongst caregivers
While it is not possible to ascertain retrospectively if myocarditis was caused by either infection with H 1 N 1 virus or as a result of pregnancy ( in the absence of endomyocardial biopsies ) , the significant association with myocardial involvement in both women demonstrates the increased risk of exposure to H 1 N 1 influenza virus in pregnant women .
This highlights the need for health care providers to increase awareness amongst caregivers to target this ' at risk ' group aggressively with vaccination and prompt treatment .