Article
Strain Prevalence, Rather than Innate Virulence Potential, Is the Major Factor Responsible for an Increase in Serious Group A Streptococcus Infections
3 May 2007
Abstract excerpt
BACKGROUND: It is postulated that the surge in incidence and severity of group A streptococcus (GAS) infections since the 1980s is due to the emergence of strains of GAS with increased virulence. We used active, population-based surveillance of invasive GAS disease, serologically confirmed pharyngitis, and carriage to determine whether particular strains were associated with invasive disease. METHODS: Two hundred...
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