A Bourde

Publications (3)15.23 Total impact

• Article: A review of the dynamics and severity of the pandemic A(H1N1) influenza virus on Réunion island, 2009.

  E D'Ortenzio, P Renault, M C Jaffar-Bandjee, B A Gaüzère, M Lagrange-Xélot, A Fouillet, P Poubeau, A Winer, A Bourde, F Staikowsky, P Morbidelli, E Rachou, F Thouillot, A Michault, L Filleul
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  ABSTRACT: On Reunion Island, in response to the threat of emergence of the pandemic influenza A(H1N1)2009 virus, we implemented enhanced influenza surveillance from May 2009 onwards in order to detect the introduction of pandemic H1N1 influenza and to monitor its spread and impact on public health. The first 2009 pandemic influenza A(H1N1) virus was identified in Réunion on July 5, 2009, in a traveller returning from Australia; seasonal influenza B virus activity had already been detected. By the end of July, a sustained community pandemic virus transmission had been established. Pandemic H1N1 influenza activity peaked during week 35 (24-30 August 2009), 4 weeks after the beginning of the epidemic. The epidemic ended on week 38 and had lasted 9 weeks. During these 9 weeks, an estimated 66 915 persons who consulted a physician could have been infected by the influenza A(H1N1)2009 virus, giving a cumulative attack rate for consultants of 8.26%. Taking into account the people who did not consult, the total number of infected persons reached 104 067, giving a cumulative attack rate for symptomatics of 12.85%. The crude fatality rate (CFR) for influenza A(H1N1)2009 and the CFR for acute respiratory infection was 0.7/10 000 cases. Our data show that influenza pandemic did not have a health impact on overall mortality on Réunion Island. These findings demonstrate the value of an integrated epidemiological, virological and hospital surveillance programme to monitor the scope of an epidemic, identify circulating strains and provide some guidance to public health control measures.
  Clinical Microbiology and Infection 04/2010; 16(4):309-16. · 4.54 Impact Factor
• Article: A review of the dynamics and severity of the pandemic A(H1N1) influenza virus on Réunion Island, 2009

  E. D’Ortenzio, P. Renault, M. C. Jaffar-Bandjee, B. A. Gaüzère, M. Lagrange-Xélot, A. Fouillet, P. Poubeau, A. Winer, A. Bourde, F. Staikowsky, P. Morbidelli, E. Rachou, F. Thouillot, A. Michault, L. Filleul
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  ABSTRACT: Clin Microbiol Infect 2010; 16: 309–316AbstractOn Reunion Island, in response to the threat of emergence of the pandemic influenza A(H1N1)2009 virus, we implemented enhanced influenza surveillance from May 2009 onwards in order to detect the introduction of pandemic H1N1 influenza and to monitor its spread and impact on public health. The first 2009 pandemic influenza A(H1N1) virus was identified in Réunion on July 5, 2009, in a traveller returning from Australia; seasonal influenza B virus activity had already been detected. By the end of July, a sustained community pandemic virus transmission had been established. Pandemic H1N1 influenza activity peaked during week 35 (24–30 August 2009), 4 weeks after the beginning of the epidemic. The epidemic ended on week 38 and had lasted 9 weeks. During these 9 weeks, an estimated 66 915 persons who consulted a physician could have been infected by the influenza A(H1N1)2009 virus, giving a cumulative attack rate for consultants of 8.26%. Taking into account the people who did not consult, the total number of infected persons reached 104 067, giving a cumulative attack rate for symptomatics of 12.85%. The crude fatality rate (CFR) for influenza A(H1N1)2009 and the CFR for acute respiratory infection was 0.7/10 000 cases. Our data show that influenza pandemic did not have a health impact on overall mortality on Réunion Island. These findings demonstrate the value of an integrated epidemiological, virological and hospital surveillance programme to monitor the scope of an epidemic, identify circulating strains and provide some guidance to public health control measures.
  Clinical Microbiology and Infection 03/2010; 16(4):309 - 316. · 4.54 Impact Factor
• Article: Preliminary analysis of the pandemic H1N1 influenza on Reunion Island (Indian Ocean): surveillance trends (July to mid-September 2009).

  F Thouillot, C Do, E Balleydier, E Rachou, F Staikowsky, P Morbidelli, Y Jacques-Antoine, A Bourde, M Lagrange-Xelot, P Poubeau, A Winer, Ba Gauzere, A Michault, Mc Jaffar-Bandjee, G Henrion, L Filleul, E D'Ortenzio
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  ABSTRACT: First infections with the 2009 pandemic H1N1 influenza virus were identified on Reunion Island in July 2009. By the end of July, sustained community transmission of the virus was established. Pandemic H1N1 influenza activity peaked during week 35 (24 to 30 August), five weeks after the beginning of the epidemic and has been declining since week 36. We report preliminary epidemiological characteristics of the pandemic on Reunion Island in 2009 until week 37 ending September 13.
  Euro surveillance: bulletin europeen sur les maladies transmissibles = European communicable disease bulletin 01/2009; 14(42). · 6.15 Impact Factor