Pregnancy was identified as a major risk factor for increased mortality and morbidity
However , to the best of our knowledge there are no previous reports in the literature
Pregnancy was identified as a major risk factor for increased mortality and morbidity due to H 1 N 1 influenza in the pandemic of 2009 to 2010 .
However , to the best of our knowledge there are no previous reports in the literature linking H 1 N 1 with myocarditis in pregnancy .