The rise and spread of invasive emm 49 Streptococcus pyogenes in the USA
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Background. The propensity of Streptococcus pyogenes (group A Streptococcus) to invade normally sterile sites and cause invasive group A Streptococcus (iGAS) disease varies across strains, which are classified using the emm gene. Between 2015 and 2017, multist... ...
