Surveillance of Influenza Virus Among Children With Febrile Respiratory

Status Completed

Clinical Trial Summary

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.

Clinical Trial Description

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. ;

Study Design

Observational Model: Ecologic or Community, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00760500
Study type	Observational
Source	St. Jude Children's Research Hospital
Contact
Status	Completed
Phase	N/A
Start date	January 2004
Completion date	March 2014

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms