The history and importance of the problem.Influenza is a respiratory disease, the acute public health problem is one of the most important parts of the world. Influenza virus infections are caused by divided into 3 types: A, B, and C the importance Thai country influenza significantly since its outbreak occurred after 2547 (2004) bird flu strain H5N1, etc and in the worldwide epidemic is 2552 (2009) infections influenza A type H1N1 (pdm09)Many patients have died. The Ministry of public health has issued regulations require flu vaccinations, especially common species, seasonal H1N1, patients in high risk groups to reduce the death rate of patients rate the people by providing comprehensive services for target groups in all 7 free rights to retain personnel, medical and public health related to the patient in this target group.
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