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目的调查处理某市某学校流感暴发疫情,分析暴发原因和规律,为流感暴发疫情的防控提供参考。方法按照《流感样病例暴发疫情处置指南(2012版)》开展现场流行病学调查与处理,采集病人咽拭标本,采用RTPCR方法进行流感病毒核酸检测。结果共搜索符合症状的流感样病例120例,总罹患率为4.30%(120/2 040)。首例病例在3月6日发病,采集13份咽拭标本,发病高峰出现在3月11-14日。病毒分离培养为B型流感病毒Victoria型。结论本次疫情由B型Victoria型流感病毒引起。未及时隔离治疗病人、疫情报告迟缓是引起本次暴发的原因。建议流感高发季节,加强学校师生培训,发现疫情及时处置。
Objective To investigate and deal with a school outbreak of influenza in a city to analyze the causes and laws of the outbreak and provide a reference for prevention and control of influenza outbreak. Methods The epidemiological investigation and treatment were carried out in accordance with Guidelines for the Treatment of Outbreaks of Influenza-like Cases (Version 2012). Throat swab samples were collected and the influenza virus nucleic acid was detected by RTPCR. Results A total of 120 symptomatic influenza-like cases were searched, with a total attack rate of 4.30% (120/2 040). The first case was reported on March 6 and 13 throat swabs were collected. The peak incidence peaked on March 11-14. The virus was isolated and cultured as type B influenza virus Victoria type. Conclusion The outbreak was caused by type B Victoria influenza virus. The patient was not isolated and treated promptly, and the slow reporting of the outbreak was the reason for the outbreak. Proposed influenza season, to strengthen the training of teachers and students found that the epidemic in time to dispose of.