Increase in invasive streptococcus pyogenes and streptococcus pneumoniae infections in England, December 2010 to January 2011

Abstract

Increases in invasive Streptococcus pyogenes and S. pneumoniae above the seasonally expected levels are currently being seen in England. Preliminary analyses suggest that the high level of influenza activity seen this winter may be contributing to an increased risk of concurrent invasive bacterial and influenza infections in children and young adults.