With the aim of making research. The result of the research, to be used as a guide to prepare and prevent an outbreak in Phitsanulok. The goal of reducing the number of patients and deaths. The outbreak in Phitsanulok, which tends to increase every year. This information will be useful to the Government agencies involved in public health, such as a hospital or health centre or the relevant authorities in the locality in order to provide further protection plan.
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