ABSTRACT
INTRODUCTION: Respiratory infections increased in Mexico in 2009 due to an epidemic of influenza. METHODS: To compare symptoms and infectivity of influenza A(H1N1) and seasonal influenza we evaluated epidemiological data and microbiological sampling of health workers (HW) and patients who probably had influenza. RESULTS: From April to November 2009 we studied 83 HW (29 with influenza A(H1N1) and 8 with seasonal influenza) and 71 patients (26 and 11, respectively). The subtypes of influenza had similar clinical data. CONCLUSIONS: Fifteen patients with immunosuppression or chronic diseases developed fatal pneumonia; the infectivity was greater for influenza A(H1N1).
Subject(s)
Disease Outbreaks , Hospitals, Urban/statistics & numerical data , Influenza A Virus, H1N1 Subtype/pathogenicity , Influenza, Human/epidemiology , Inpatients/statistics & numerical data , Personnel, Hospital/statistics & numerical data , Adult , Aged , Antiviral Agents/therapeutic use , Comorbidity , Contact Tracing , Cross Infection/epidemiology , Cross Infection/transmission , Cross Infection/virology , Female , Hospital Mortality , Humans , Immunocompromised Host , Infectious Disease Transmission, Patient-to-Professional/statistics & numerical data , Infectious Disease Transmission, Professional-to-Patient/statistics & numerical data , Influenza A Virus, H1N1 Subtype/isolation & purification , Influenza, Human/drug therapy , Influenza, Human/prevention & control , Influenza, Human/transmission , Influenza, Human/virology , Male , Mexico/epidemiology , Middle Aged , Neoplasms/epidemiology , Occupational Diseases/drug therapy , Occupational Diseases/epidemiology , Occupational Diseases/virology , Oseltamivir/therapeutic use , Virulence , Zanamivir/therapeutic useABSTRACT
Introducción: En 2009 se incrementaron las infecciones respiratorias en México por una epidemia de influenza. Métodos: Para comparar sintomatología y contagiosidad de influenza A(H1N1) e influenza estacional recogimos, entre abril y noviembre de 2009, datos clínico-epidemiológicos y muestras microbiológicas de Trabajadores sanitarios (TS) y pacientes con probable influenza. Resultados: De 83 TS, 29 tuvieron influenza A(H1N1) y 8 estacional; de 71 pacientes 26 y 11 respectivamente. Observamos cuadro clínico similar en ambos subtipos de influenza. Conclusiones: Quince pacientes con inmuno supresión y con enfermedades crónicas desarrollaron neumonía fatal; la contagiosidad fue mayor para influenza A(H1N1) (AU)
Introduction: Respiratory infections increased in Mexico in 2009 due to an epidemic of influenza. Methods: To compare symptoms and infectivity of influenza A(H1N1) and seasonal influenza we evaluated epidemiological data and microbiological sampling of health workers (HW) and patients who probably had influenza. Results: From April to November 2009 we studied 83HW(29 with influenza A(H1N1) and 8 with seasonal influenza) and 71 patients (26 and 11, respectively). The subtypes of influenza had similar clinical data. Conclusions: Fifteen patients with immuno suppression or chronic diseases developed fatal pneumonia; the infectivity was greater for influenza A(H1N1) (AU)
