At the beginning of the outbreak, CDC staff in changchun city in accordance with the Rubella Epidemiological Case Questionnaire, the region has short front period, low fever, rash and lymph node swelling as the main clinical manifestations of patients, that is, suspected rubella personnel to carry out accurate investigation, and according to the unified development of the Rubella Clinical Case Registration Form for registration, and use descriptive epidemiological methods for statistical analysis and summary.
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