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Enterovirus Surveillance -- United States, 1988

CDC received reports of 39 nonpolio enterovirus (NPEV) isolates identified in the United States in March through May 1988 from state virology laboratories. Echovirus 9 was isolated most frequently (nine isolates), followed by coxsackievirus B4 (six isolates), coxsackievirus A9 and echovirus 6 (five each), echovirus 11 (three isolates), and coxsackievirus B1 and echovirus 3 (two each).

In 1987, the six most common NPEV isolates were echovirus 6 (169 (16%) of the 1084 isolates), echovirus 18 (144), echovirus 11 (125), coxsackievirus A9 (122), coxsackievirus B2 (83), and echovirus 9 (46). These six NPEV types represented 64% of the total enterovirus isolates reported for 1987. Reported by: State virology laboratory directors. Respiratory and Enterovirus Br, Div of Viral Diseases, Center for Infectious Diseases, CDC.

Editorial Note

Editorial Note: Since 1970, state health department laboratories have submitted reports on enterovirus serotypes to CDC approximately 6-8 weeks after each specimen is submitted for isolation. CDC's NPEV surveillance data show that isolates from March through May predict the types likely to be isolated in July through December, which includes the peak enterovirus season (1). Each year (1970-1983), the six most common isolates in March through May accounted for an average of 59% of the isolates in July through December. In 1987, they accounted for 50% of the isolates in July through December.

The reports of early 1988 isolates suggest that echoviruses 3, 6, 9, and 11 and coxsackieviruses A9, B1, and B4 are likely to be common NPEV isolates this year. Each of the most frequent seven isolates reported in March through May this year, and five of the six most frequent isolates reported in 1987, were among the 15 most frequently reported isolates for 1970-1983 (1).

Reference

  1. Strikas RA, Anderson LJ, Parker RA. Temporal and geographic patterns of isolates of nonpolio enterovirus in the United States, 1970-1983. J Infect Dis 1986;153:346-51.

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