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Surveillance Case
Definition: Influenza
Confirmed Case - Clinically
compatible signs and symptoms with:
-
laboratory confirmation
by detection or isolation of influenza virus in pharyngeal, nasal
secretions or lung tissues or
-
demonstration of a
four-fold or greater increase in hemagglutination antibody titres to
influenza between acute and convalescent sera
or
(c) an epidemiologic link
to a laboratory confirmed case.
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and all respiratory infection outbreaks in institutions should be
reported
immediately to the Medical Officer of Health by telephone. Other diseases are to
be reported
the next working day.