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Subtype of Influenza A Isolates -- United States
Influenza A viruses isolated in October from two patients in
California and one patient in South Dakota (1) have been confirmed
by
the WHO Collaborating Center for Influenza, CDC, as subtype (H3N2).
Identification of the subtype for two isolates from Wyoming is
pending. The cases in California occurred in an 83-year-old woman
who
had been touring China and the 62-year-old physician who treated
her
upon her return to the United States.
Colorado has reported its first isolate of influenza A(H3N2),
recovered from a specimen collected from a 3-year-old child who
became
ill in late November. For the week ending November 21, 18 states
reported sporadically occurring cases of influenza-like illness. No
outbreaks of influenza-like illness have been reported thus far
this
season.
Reported by: Participating State Epidemiologists and Laboratory
Directors. Influenza Virus Laboratory, Univ of Colorado Health
Science
Center, Univ of Colorado, Denver. Div of Field Svcs, Epidemiology
Program Office; WHO Collaborating Center for Influenza, Influenza
Br,
Div of Viral Diseases, Center for Infectious Diseases, CDC.
Reference
Centers for Disease Control. Influenza A isolates--United
States,
1987. MMWR 1987;36:751.
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