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
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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