Epidemiological Update, Seasonal influenza in North America (2 January 2014)
Actualización Epidemiológica, Inicio de mayor actividad de influenza en América del Norte (2 enero 2014)
Abstract
The 2013-2014 circulation of seasonal influenza in the northern hemisphere began officially in epidemiological week (EW) 40 of 2013, with an increase in the number of influenza-like illness (ILI) and hospitalizations reported starting in EW 50 of 2013. This is within expected levels for this time of year. Every year, an increase in influenza is reported primarily during the autumn and winter months in the northern hemisphere. Currently, the predominant virus is influenza A(H1N1)pdm09, which is considered a seasonal virus, signifying that it will continue to circulate like other influenza viruses. Clinical management and outbreak response is the same as for other seasonal influenza viruses. La temporada 2013-2014 de circulación de influenza en el hemisferio norte se inició oficialmente a partir de la semana epidemiológica (SE) 40 del 2013, registrándose un incremento a partir de la SE 50 tanto en el número de Enfermedad Tipo Influenza (ETI) como de hospitalizaciones por esta enfermedad. Esta situación está dentro de lo esperado para esta época del año. Cada año se registra un incremento en la actividad de influenza principalmente durante el otoño e invierno en el hemisferio norte. Actualmente, el virus predominante es el de influenza A(H1N1)pdm09, el cual es considerado un virus estacional, lo que significa que seguirá circulando como los demás virus de influenza. Su manejo clínico y respuesta a brotes es igual al de otros virus de influenza estacional.
Subject
Category of PAHO Strategic Plan 2014-2019
Collections
Related items
Showing items related by title, author, creator and subject.
-
Epidemiological Update, Explanatory note on seasonal influenza (13 March 2012)
(Washington, D.C., PAHO, 2012-03-13)The intensity of seasonal influenza outbreaks differs and can affect all age groups, although the highest risk of developing severe manifestations is in children under two years of age, adults over 65 years of age, pregnant ... -
Influenza at the Human-Animal Interface: PAHO Recommendations to Strengthen Intersectoral Work for Surveillance, Early Detection, and Investigation, 9 July 2020
(Washington, D.C., PAHO, 2020-08-10)This document provides a summary of influenza viruses at the human-animal interface. It presents recommendations for surveillance strategies, monitoring, early detection, and steps of general case investigation that should ... -
Epidemiological Update: Influenza (14 June 2019)
(Washington, D. C., PAHO, 2019-06-14)Following is a summary of the influenza situation by sub-regions in the Region of the Americas. The situation of the Southern Cone subregion; which presents an earlier than expected influenza season is reported first; the ...
