Title: A Cluster of Paediatric Invasive Group A Streptococcal and Chicken Pox Infections
Authors: Ó Maoldomhnaigh, C; Butler, K; Gavin, P
Abstract: Group A streptococcus (GAS) causes a variety of acute clinical syndromes from pharyngitis and scarlet fever commonly seen in primary care to more severe life-threatening invasive disease. Invasive GAS, categorised into three groups - necrotising fasciitis, streptococcal toxic shock syndrome and sepsis with or without an identifiable source of infection- is a notifiable disease to the Health Protection Surveillance Centre (HPSC)1. Laboratory criteria for a confirmed case require isolation of GAS from a normally sterile site. The HPSC previously reported a marked increase in the incidence of invasive GAS infections from 1.65/100,000 population in 2011 to 3.65/100,000 in 20132. The increased incidence was notable also for a 300% increase in the proportion of invasive GAS cases in children. After a slight decrease in incidence in 20153 (2.3/100000), we noted a cluster of invasive GAS cases referred to the paediatric infectious disease (PID) department of Children’s University Hospital (CUH), Temple Street, in 2016. We sought to further characterise this cluster of paediatric invasive GAS infections.
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