M Jacobs

Publications (2)12.31 Total impact

• Source

  Available from: eurosurveillance.org

  Article: The second wave of 2009 pandemic influenza A(H1N1) in New Zealand, January-October 2010.

  D Bandaranayake, M Jacobs, M Baker, D Hunt, T Wood, A Bissielo, M Macfarlane, L Lopez, G Mackereth, Qs Huang
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  ABSTRACT: This paper uses data from multiple surveillance systems to describe the experience in New Zealand with the second complete wave of pandemic influenza A(H1N1)2009 in 2010. Measures such as hospitalisation rates suggest the overall impact of influenza A(H1N1)2009 in 2010 was between half and two thirds that of the first wave in 2009. There was considerable regional and sub-regional variation with a tendency for higher activity in areas that experienced low rates in 2009. Demographic characteristics of the second wave were similar to those in 2009 with highest rates seen in children under the age of five years, and in indigenous Māori and Pacific peoples. Hospital services including intensive care units were not under as much pressure as in 2009. Immunisation appears to have contributed to the reduced impact of the pandemic in 2010, particularly for those aged 60 years and older.
  Euro surveillance: bulletin europeen sur les maladies transmissibles = European communicable disease bulletin 01/2011; 16(6). · 6.15 Impact Factor
• Article: Pandemic influenza A(H1N1)v in New Zealand: the experience from April to August 2009.

  M G Baker, N Wilson, Q S Huang, S Paine, L Lopez, D Bandaranayake, M Tobias, K Mason, G F Mackereth, M Jacobs, C Thornley, S Roberts, C McArthur
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  ABSTRACT: Following the detection of imported cases of pandemic influenza A(H1N1)v on 25 April 2009, New Zealand implemented containment measures that appeared to slow establishment of the pandemic during May. The pandemic accelerated markedly in June, reaching a peak within four to six weeks, and has been declining since mid-July. By 23 August there had been 3,179 recorded cases (97.8% reported as confirmed), including 972 hospitalisations, 114 intensive care admissions, and 16 deaths. Influenza-like illness (ILI) surveillance in general practice suggests that 7.5% (95% CI: 3.4-11.2) of the population of New Zealand had symptomatic infection, giving a case fatality ratio of 0.005%. Hospitalisations were markedly higher for Māori (age standardised relative risk (RR)=3.0, 95% CI: 2.9-3.2) and Pacific peoples (RR=6.7, 95% CI: 6.2-7.1) compared with Europeans and others. The apparent decline of the pandemic (shown by all surveillance systems) cannot be fully explained. New Zealand remains in the middle of its traditional influenza season, the influenza A(H1N1)v virus appears relatively infectious, and we estimate that only about 11% of the population have been infected by this novel agent.
  Euro surveillance: bulletin europeen sur les maladies transmissibles = European communicable disease bulletin 02/2009; 14(34). · 6.15 Impact Factor