Infección por virus pandémico (H1N1) 2009 en Andalucía

Abstract

������������������������������� ������������������������In April 2009, in response to the WHO s alert due to the existence of human infection cases with a new AH1N1 influenza virus, known as swine flu, Andalusian Health Authorities trigger an specific action plan. The surveillance actions developped provided us with appropriate clinical, epidemiological and virological characteristics of the disease.During the first few days, contingency plans were set up based on epidemiological surveillance and outbreak control measures were adopted through early alert and rapid response systems. After phase 6 was declared, influenza sentinel and severe cases surveillance were used in order to plan healthcare services, to reduce transmission and to identify and protect the most vulnerable population groups.Behaviour of pandemic influenza in Andalusia was similar to that observed in the rest of the world. Atack rate was similar to a seasonal flu and the peak was reached at the 46th/2009 week. Most of them were mild cases and affected particularly to young people. The average age of hospitalised patients was 32.Prior pulmonary disease, smoking and morbid obesity (BMI>40) were the most common pathologies and risk factors in severe cases. An impact scenario of pandemic wave in Andalusia, with an expected attack rate from 2 to 5%, was prepared considering watt observed in the southern hemisphere. Characteristics of the epidemic concerning its extent, severity and mortality rate were adjusted to this scenario. ���������� Epidemiology. Sentinel surveillance. Disease Outbreaks. Influenza A virus, H1N1 subtype. Grippe. Influenza, human. Spain.

Influenza A(H1N1)pdm09-Associated Pneumonia Deaths in Thailand

“…The prevalence of high-risk conditions among fatal influenza A(H1N1)pdm09 cases in the U.S. ranged from 68% [20] to 73% [5] and in Brazil was 55% (excluding obesity) [21]. Similar to previous studies [5], [22], [23], [24], [25], [26], [27], [28], [29], [30], diabetes mellitus, cardiovascular disease and chronic lung disease were common underlying medical conditions among influenza A(H1N1)pdm09 virus-associated deaths in Thailand.…”

Sustained high prevalence of pneumococcal serotype 1 in paediatric parapneumonic empyema in southern Spain from 2005 to 2009

“…There was a temporal association between the pandemic influenza A virus (H1N1) and PPE in our population group. The frequency of children with PPE was, compared with previous years, significantly higher during the last quarter of 2009, correlating with the highest prevalence of H1N1 cases [19]. An unusual cluster of children with PPE was admitted to the hospital in September 2009 coinciding with increased circulation of the H1N1 virus.…”

Comparison of Pandemic (H1N1) 2009 and Seasonal Influenza, Western Australia, 2009

“…There are little data directly comparing confirmed pandemic (H1N1) 2009 with contemporaneous seasonal influenza over the same influenza season ( 4 – 6 ). Many of the reports on the epidemiology of influenza in 2009 to date have focused exclusively on pandemic (H1N1) 2009 or have used limited laboratory-based surveillance data on isolation rates for seasonal and pandemic (H1N1) 2009 influenza viruses ( 7 – 13 ).…”