Surveillance of Influenza Virus Among Children With Febrile Respiratory Complaints Attending the Pediatric Clinic of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, Mainland China
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 13,201
- 试验地点
- 1
- 主要终点
- To identify Influenza A or B and the subtype of Influenza A of the isolates from children with febrile respiratory complaints who attend the pediatric clinic of the First Affiliated Hospital, Shantou University Medical College.
研究概览
简要总结
The surveillance of influenza virus among children with febrile reparatory complaints attending the pediatric clinic in Shantou is an epidemiologic study to identify the type (influenza A or B) and the subtype of Influenza A of the isolates from children with febrile respiratory complaints who attend the pediatric clinic of the first Affiliated Hospital, Shantou University Medical College, Shantou Guangdong, China. Also this study investigates the genetic composition of all segments of isolated strains using standard molecular techniques and to make available the new strains of influenza viruses isolated from such children for the formulation of influenza vaccines. Clinical manifestation of the respiratory illness is recorded and single nasopharyngeal swab is obtained from eligible children. Viral culture is performed on the nasopharyngeal secretions. If influenza is isolated, this is characterized if it belongs to influenza A or B. If the virus is characterized as influenza A, further antigenic studies is done to determine subtype of influenza. Viral isolates is further studied to determine the genetic composition of the virus. Information obtained from the viral isolates is shared with the WHO and the CDC.
详细描述
OBJECTIVES
Primary objective:
- To identify the type (Influenza A or B) and the subtype of Influenza A of the isolates from children with febrile respiratory complaints who attend the pediatric clinic of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China.
Secondary objectives
- To investigate the genetic composition of all segments of isolated strains using standard molecular techniques.
- To make available the new strains of influenza viruses isolated from such children for the formulation of influenza vaccines.
研究设计
- 研究类型
- Observational
- 观察模型
- Ecologic Or Community
- 时间视角
- Prospective
入排标准
- 年龄范围
- — 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age: 0 day to 18 years.
- •Patient was seen at the pediatric clinic of the First Affiliated Hospital within 7 days of the onset of signs and symptoms of febrile respiratory illness suspected to be of viral origin (temperature > 37.7ºC or reliable history of fever before being examined, and respiratory symptoms and signs such as cough, sore throat, and coryza).
- •Parents agree to a nasopharyngeal specimen being taken by swab from their child.
排除标准
- •Patient is too ill to tolerate a nasopharyngeal specimen swab.
结局指标
主要结局
To identify Influenza A or B and the subtype of Influenza A of the isolates from children with febrile respiratory complaints who attend the pediatric clinic of the First Affiliated Hospital, Shantou University Medical College.
时间窗: This is an epidemiologic study, there is no time frame.
次要结局
未报告次要终点