tetano
Editor, Senior Moderator
Influenza Other Respi Viruses. 2012 Aug 2. doi: 10.1111/j.1750-2659.2012.00389.x. [Epub ahead of print]
Sentinel surveillance for influenza and other respiratory viruses in C?te d'Ivoire, 2003-2010.
Kadjo HA, Ekaza E, Coulibaly D, Kouassi DP, Nzussouo NT, Kouakou B, Ouattara A, Adjogoua EV, Akoua-Koffi CG, Elia GA, Victoir K, Bretin-Dosso MC, Mott JA.
Source
Respiratory virus unit, Department of epidemic virus and National Influenza Centre, Pasteur Institute, Abidjan, C?te d'Ivoire. Institut National de l'Hygi?ne Publique, Service de la surveillance ?pid?miologique, Abidjan, C?te d'Ivoire. Influenza Division, Centers for Disease Control and Prevention, Accra, Ghana. U.S. Naval Medical Research Unit No.3 (NAMRU-3/GDDRP) Noguchi Memorial Institute for Medical Research (NMIMR). Division vaccins, Sanofi Aventis - Pasteur, Abidjan, C?te d'Ivoire. Institut Pasteur de Paris, Direction des affaires Internationales, Paris, France. Influenza Program Director, U.S. Centers for Disease Control and Prevention, Nairobi, Kenya.
Abstract
Please cite this paper as: Kadjo et al. (2012) Sentinel surveillance for influenza and other respiratory viruses in C?te d'Ivoire, 2003-2010. Influenza and Other Respiratory Viruses DOI: 10.1111/j.1750-2659.2012.00389.x. Background Many countries in Africa have lacked sentinel surveillance systems for influenza and are under-represented in data used for global vaccine strain selection. Objectives We describe 8 years of sentinel surveillance data and the contribution of influenza and other viruses to medically attended influenza-like illness (ILI) in C?te d'Ivoire. Methods Sentinel surveillance was established in 2003. Nasopharyngeal (NP) specimens and epidemiologic data are collected from persons of all ages presenting with ILI at sentinel sites. Respiratory specimens have been tested for influenza using various viral and molecular diagnostic methods. A subset of 470 specimens collected from children aged 0-5 years were tested for multiple respiratory viruses using RT-PCR. Results From 2003 to 2010, 5074 NP specimens were collected from patients with ILI. Overall, 969/5074 (19%) of these specimens tested positive for influenza. Seasonal influenza A(H1N1) viruses predominated during 5 years and influenza A(H3N2) viruses predominated during 3 years. Influenza B viruses cocirculated with influenza A viruses during each year from 2004 to 2010. Seasonal peaks in influenza circulation were observed during the months of May, June, and October, with the largest peak corresponding with the primary rainfall season. Of 470 specimens collected from children under aged 5 who were tested for multiple respiratory viruses, a viral respiratory pathogen was detected in 401/470 (85%) of specimens. Commonly detected viruses were RSV (113 of 470 specimens, 24%), rhinoviruses (85/470, 18%), influenza (77/470, 16%), and parainfluenza (75/470, 16%). Conclusion In C?te d'Ivoire, there is a significant annual contribution of influenza and other respiratory viruses to medically attended ILI.
? 2012 Blackwell Publishing Ltd.
PMID:
22863403
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22863403
Sentinel surveillance for influenza and other respiratory viruses in C?te d'Ivoire, 2003-2010.
Kadjo HA, Ekaza E, Coulibaly D, Kouassi DP, Nzussouo NT, Kouakou B, Ouattara A, Adjogoua EV, Akoua-Koffi CG, Elia GA, Victoir K, Bretin-Dosso MC, Mott JA.
Source
Respiratory virus unit, Department of epidemic virus and National Influenza Centre, Pasteur Institute, Abidjan, C?te d'Ivoire. Institut National de l'Hygi?ne Publique, Service de la surveillance ?pid?miologique, Abidjan, C?te d'Ivoire. Influenza Division, Centers for Disease Control and Prevention, Accra, Ghana. U.S. Naval Medical Research Unit No.3 (NAMRU-3/GDDRP) Noguchi Memorial Institute for Medical Research (NMIMR). Division vaccins, Sanofi Aventis - Pasteur, Abidjan, C?te d'Ivoire. Institut Pasteur de Paris, Direction des affaires Internationales, Paris, France. Influenza Program Director, U.S. Centers for Disease Control and Prevention, Nairobi, Kenya.
Abstract
Please cite this paper as: Kadjo et al. (2012) Sentinel surveillance for influenza and other respiratory viruses in C?te d'Ivoire, 2003-2010. Influenza and Other Respiratory Viruses DOI: 10.1111/j.1750-2659.2012.00389.x. Background Many countries in Africa have lacked sentinel surveillance systems for influenza and are under-represented in data used for global vaccine strain selection. Objectives We describe 8 years of sentinel surveillance data and the contribution of influenza and other viruses to medically attended influenza-like illness (ILI) in C?te d'Ivoire. Methods Sentinel surveillance was established in 2003. Nasopharyngeal (NP) specimens and epidemiologic data are collected from persons of all ages presenting with ILI at sentinel sites. Respiratory specimens have been tested for influenza using various viral and molecular diagnostic methods. A subset of 470 specimens collected from children aged 0-5 years were tested for multiple respiratory viruses using RT-PCR. Results From 2003 to 2010, 5074 NP specimens were collected from patients with ILI. Overall, 969/5074 (19%) of these specimens tested positive for influenza. Seasonal influenza A(H1N1) viruses predominated during 5 years and influenza A(H3N2) viruses predominated during 3 years. Influenza B viruses cocirculated with influenza A viruses during each year from 2004 to 2010. Seasonal peaks in influenza circulation were observed during the months of May, June, and October, with the largest peak corresponding with the primary rainfall season. Of 470 specimens collected from children under aged 5 who were tested for multiple respiratory viruses, a viral respiratory pathogen was detected in 401/470 (85%) of specimens. Commonly detected viruses were RSV (113 of 470 specimens, 24%), rhinoviruses (85/470, 18%), influenza (77/470, 16%), and parainfluenza (75/470, 16%). Conclusion In C?te d'Ivoire, there is a significant annual contribution of influenza and other respiratory viruses to medically attended ILI.
? 2012 Blackwell Publishing Ltd.
PMID:
22863403
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22863403