Epidemiologic characteristics of A H1N1 influenza at Queretaro
Main Article Content
Keywords
Influenza, human, Influenza A virus, H1N1 subtype, Health profile
Abstract
Objective: to describe the epidemic profile of AH1N1 Influenza and the main actions considered for its control.
Methods: a descriptive and prospective study in patients with signs and symptoms suggestive of influenza was performed (fever above 38 °C, sore throat, cephalgia, muscular and articular pain). Fast test and PCR test were done to all suspicious patients. Lethality and mortality rates were calculated.
Results: from 7678 registered cases, 2220 were confirmed. The 75.3 % of deaths and 75.4 % of patients aged 10 to 59 years. There was no difference by sex. The State Health Services reported 45.7% patients and 67.5 % deaths and the Instituto Mexicano del Seguro Social 41.6 % patients and 28.5 % deaths. The sensitivity of fast test was 79 % and there was a 21 % of false negatives. Clinical featuring was: fever 98 %, migraine 86.5 %, dry cough 84.8 % and general malaise 84.3 %. The control strategy included: Medical units for immediate answer, institutional detection of cases, opportune and accessibility treatment, specific areas in urgencies, hospitalization and intensive care attention.
Conclusions: the control strategy applied was useful.
References
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