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The information presented in this update is based on data provided by Ministries of Health and National Influenza Centers of Member States to the Pan American Health Organization (PAHO) or from updates on the Member States’ Ministry of Health web pages.


Regional Update EW 44, 2014
    • North America: Influenza activity continued low. In Canada, ILI activity decreased in epidemiologic week (EW) 44 however continued above expected levels since the last ten weeks. Influenza detections have continued to increase since EW 37 and influenza A(H3N2) has predominated among circulating influenza virus. Detections of adenovirus, parainfluenza and RSV continued to increase since EW 40 and rhinovirus detections decrease these week. In the United States, ILI activity continued below the national baseline for the last five weeks. Influenza A (not subtyped), influenza A(H3) and influenza B have predominated among the circulating influenza virus. From mid-August to November 6, 2014, 1,116 cases of Enterovirus D68 have been confirmed in 47 states and the District of Columbia; 37 states and the District of Columbia reported low or declining Enterovirus D68 activity and ten reported elevated or increasing activity. In Mexico, ARI activity continued within the endemic channel. Since previous three EW, no increase in the proportions of SARI/ILI consultations has been recorded and remained below 2%. Since the last six weeks, there have been very few influenza detections in the country.
    • Caribbean: Respiratory virus activity remained low. In Cuba, SARI activity decrease this week after two weeks of increased activity. In Jamaica, the proportion of SARI hospitalizations increase this week and are within expected levels. In Puerto Rico, ILI activity (as reported to CDC) was reported high after being minimal and moderate in the last weeks, however influenza detections continued low and decreasing during the last four weeks. Among respiratory virus, circulation of RSV (Cuba) and influenza B (Dominican Republic, Jamaica) were observed.
    • Central America: Respiratory virus activity remained low. SARI/ARI activity remained within expected levels (El Salvador, Nicaragua). RSV predominated among circulating virus (El Salvador, Panama).
    • Andean Sub-region: Respiratory virus activity and SARI/ARI activity remained low and within expected levels (Bolivia, Colombia, Peru, Venezuela). In Bolivia and Peru, there have been very few respiratory virus detections in the last four weeks. RSV predominated among circulating virus (Colombia, Peru).
    • Southern Cone: Respiratory virus activity and SARI/ARI activity have continued to decrease. There have been very few influenza and other respiratory virus detections in the last weeks (Argentina, Brazil, Chile, Uruguay).


Read the full Influenza Report - EW 44

Last Updated on Wednesday, 12 November 2014 15:40
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