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Reports of 54 nonpolio enterovirus (NPEV) isolates identified
in
March through May 1986 were received from state virology
laboratories. Echovirus 4 was isolated most frequently (18/54),
followed by coxsackievirus B5 (12 isolates), coxsackievirus B3
(six),
coxsackievirus B2 (five), and coxsackievirus B4, echovirus 7, and
echovirus 11 (three each). In 1985, the six most common NPEV
isolates
were echovirus 11 (217 of the 1,817 isolates), echovirus 21 (215),
echovirus 6 and 7 (187 each), coxsackievirus B2 (134), and
coxsackievirus B4 (113). These latter six NPEV types represented
58%
of the total enterovirus isolates reported for 1985.
Reported by state virology laboratory directors; Respiratory and
Enterovirus Br, Div of Viral Diseases, Center for Infectious
Diseases,
CDC.
Editorial Note
Editorial Note: A retrospective study of CDC's NPEV surveillance
data
shows that isolates from March through May predict the types likely
to
be isolated in July through December, which includes the peak
enterovirus season (1). The six most common isolates in March
through
May accounted for an average of 59% of the isolates detected in
July
through December each year. In 1985, they accounted for 57% of the
isolates in July through December. The reports of early 1986
isolates
suggest that echoviruses 4, 7, and 11 and coxsackieviruses B2, B3,
B4,
and B5 are likely to be common NPEV isolates this year. All of the
top six isolates reported so far this year, and five of the top six
isolates reported in 1985, were in the top 15 most frequent
isolates
for 1970-1983 (1).
Reference
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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