tetano
Editor, Senior Moderator
Introduction ? This paper presents the surveillance of severe influenza
cases hospitalized in the region of Pays-de-la-Loire, France. The results are
put into perspective with hospitalizations for influenza in the region since
2006.
Methods ? The analysis focuses on cases of influenza hospitalized in intensive
care units and reported since October 2009. The study of hospitalizations
for influenza was based on an extraction from the regional database; hospital
stays with a diagnosis code of influenza with a discharge date between
January 2006 and March 2011.
Results ? The characteristics of severe cases were identical over the last
two seasons with a predominant incidence in 40-59 years adults. Virus
A(H1N1)pdm09 was still predominant in 2011; 24% of cases, mostly children
and elderly, were infected with influenza B virus. The characteristics of
previous outbreaks were consistent with prior knowledge about the impact of
the dominant virus in the age distribution and severity of influenza.
Discussion ? The regional epidemiological situation is compared with those
of New Zealand and Australia which are relevant models to anticipate the
regional situation.
http://www.invs.sante.fr/content/download/21128/126007/version/6/file/BEH_37_38.pdf
cases hospitalized in the region of Pays-de-la-Loire, France. The results are
put into perspective with hospitalizations for influenza in the region since
2006.
Methods ? The analysis focuses on cases of influenza hospitalized in intensive
care units and reported since October 2009. The study of hospitalizations
for influenza was based on an extraction from the regional database; hospital
stays with a diagnosis code of influenza with a discharge date between
January 2006 and March 2011.
Results ? The characteristics of severe cases were identical over the last
two seasons with a predominant incidence in 40-59 years adults. Virus
A(H1N1)pdm09 was still predominant in 2011; 24% of cases, mostly children
and elderly, were infected with influenza B virus. The characteristics of
previous outbreaks were consistent with prior knowledge about the impact of
the dominant virus in the age distribution and severity of influenza.
Discussion ? The regional epidemiological situation is compared with those
of New Zealand and Australia which are relevant models to anticipate the
regional situation.
http://www.invs.sante.fr/content/download/21128/126007/version/6/file/BEH_37_38.pdf