Enterovirus and Human Parechovirus Surveillance — United States, 2009–2013
- 4 September 2015
- journal article
- Published by Centers for Disease Control MMWR Office in Morbidity and Mortality Weekly Report (MMWR)
- Vol. 64 (34), 940-943
- https://doi.org/10.15585/mmwr.mm6434a3
Abstract
Enteroviruses (EVs) and human parechoviruses (HPeVs) are small, non-enveloped RNA viruses in the Picornaviridae family, which are known or suspected to cause a spectrum of clinical manifestations in humans. Although most infected persons are asymptomatic, mild presentations can include respiratory infections, herpangina, and hand, foot, and mouth disease. Among the more severe syndromes associated with EV and HPeV infection are acute flaccid paralysis, meningitis, encephalitis, myocarditis, and sepsis. Neonates and infants are at higher risk for infection and for severe clinical outcomes than older children or adults (1–3). As of August 2015, a total of 16 HPeV types and 118 EV types (within four EV species known to infect humans: A, B, C, and D) had been identified, and the spectrum of illness caused differed among virus types (4). To describe trends in EV and HPeV circulating in the United States during 2009–2013, CDC summarized detections reported through two surveillance systems. The most commonly reported types of EV and HPeV during this period were coxsackievirus (CV) A6 and HPeV3. The large number of CVA6 detections likely reflected an increase in testing in response to an outbreak of severe hand, foot, and mouth disease in late 2011 and 2012 (5). Most HPeV3 detections originated from a single hospital that routinely tested for HPeV (6). Clinicians and public health practitioners should consider the EV and HPeV types recently circulating in the United States to inform diagnostic and surveillance activities. When EV and HPeV typing is performed, clinical and public health laboratories should routinely report their results to improve the reliability and generalizability of surveillance data.Keywords
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