Community health service center. According to the policy and proof of epidemic prevention, it can be handled in the vaccinated community health service center or in the vaccinated township health center. You can apply for epidemic prevention certificate at the nearest community health service center in Tunchang. Tunchang, a municipality directly under the Central Government of Hainan Province, is located in the north central part of Hainan Island, with a total area of 123 1.5 square kilometers. Tunchang county has a tropical monsoon climate, characterized by drought in spring, high temperature and humidity in summer, typhoons in summer and autumn, and cool and rainy in winter.