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8.
Can Commun Dis Rep ; 27(11): 96-100, 2001 Jun 01.
Artículo en Inglés, Francés | MEDLINE | ID: mdl-11416943

RESUMEN

The 2000-2001 season was a relatively mild season worldwide. In Canada, lower than usual activity was reported for all national indicators of influenza activity, including the rate of influenza-like illness (ILI), the percentage of laboratory-confirmed cases of influenza and provincial/territorial influenza activity levels. However, there were a number of interesting characteristics of this year's influenza season. In contrast to the predominance of influenza A, and in particular the A/Sydney/5/97 (H3N2)-like virus over the past 3 years, influenza B predominated overall this season. Influenza A (H3N2) accounted for < 1% of all characterized isolates (H1N1 accounted for 49% of isolates). Increased laboratory-confirmed influenza activity began in the West (Yukon, prairie provinces and British Columbia) in mid-December, followed by the Atlantic provinces in mid- to late January and Ontario and Quebec in mid- February and March.


Asunto(s)
Gripe Humana/epidemiología , Orthomyxoviridae/aislamiento & purificación , Adolescente , Adulto , Distribución por Edad , Anciano , Canadá/epidemiología , Niño , Preescolar , Femenino , Humanos , Incidencia , Gripe Humana/diagnóstico , Masculino , Persona de Mediana Edad , Vigilancia de la Población , Factores de Riesgo , Distribución por Sexo
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