PRO/EDR> Streptococcus grp A, scarlet fever & invasive disease – UK: emm1, unique genotype

Scarlet Fever — United Kingdom
Since 2014, England has seen increased scarlet fever activity unprecedented in modern times. In 2016, England’s scarlet fever seasonal rise coincided with an unexpected elevation in invasive _Streptococcus pyogenes_ infections. We describe the molecular epidemiological investigation of these events.
“Methods
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We analysed changes in _S. pyogenes_ emm genotypes, and notifications of scarlet fever and invasive disease in 2014-2016 using regional (northwest London) and national