CDC H1N1 Flu | Prevention Of Pneumococcal Infections Secondary To Seasonal And 2009 H1n1 Influenza Viruses Infection

Prevention Of Pneumococcal Infections Secondary To Seasonal And 2009 H1n1 Influenza Viruses Infection
October 23, 2009, 5:00 PM ET

Pneumococcal Disease Complicating Influenza
Influenza predisposes individuals to developing bacterial community-acquired pneumonia. During each of the influenza pandemics of the 20th century, secondary bacterial pneumonia was a frequent cause of illness and death and Streptococcus pneumoniae (pneumococcus) was reported as the most common etiology. These findings also apply to seasonal influenza.

S. pneumoniae remains a leading cause of vaccine-preventable illness and death in the United States. Recently, pneumococcal infections have been identified as an important complication in severe and fatal cases of 2009 H1N1 influenza virus infection. Importantly however, approximately 70 million persons with existing pneumococcal polysaccharide vaccine (PPSV) indications (Table) are unvaccinated (National Health Interview Survey, 2007).


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CDC H1N1 Flu | Prevention Of Pneumococcal Infections Secondary To Seasonal And 2009 H1n1 Influenza Viruses Infection