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Surveillance of influenza viruses isolated from travellers at Nagoya International Airport.
- Source :
-
Epidemiology and infection [Epidemiol Infect] 2000 Jun; Vol. 124 (3), pp. 507-14. - Publication Year :
- 2000
-
Abstract
- In order to conduct a survey of influenza viruses entering Japan via travellers arriving by airplanes, gargle solutions were collected from passengers who reported to the quarantine station of Nagoya International Airport complaining of respiratory symptoms. From 504 samples collected between August 1996 and March 1999, 30 influenza virus strains were isolated. Twenty-eight of the isolates were influenza A (H3N2) viruses and two were influenza B viruses. No H1N1 virus was isolated. Among 28 isolates of H3N2 virus, 3 strains were obtained outside the influenza season. Nucleotide sequences of the haemagglutinin (HA) genes of these isolates along with those from domestic patients were analysed in order to determine the influence of imported influenza viruses by travellers on epidemics in Japan. From the phylogenetic and chronological aspects, the possibility was suggested in one case in 1997/8 and two in the 1998/9 season that imported virus by travellers may have influenced the domestic influenza epidemics.
- Subjects :
- Adolescent
Adult
Aged
Aircraft
Child
Child, Preschool
DNA, Viral analysis
Female
Hemagglutinins genetics
Humans
Incidence
Influenza A virus genetics
Influenza A virus pathogenicity
Influenza B virus genetics
Influenza B virus pathogenicity
Japan epidemiology
Male
Middle Aged
Quarantine
Disease Outbreaks
Influenza A virus isolation & purification
Influenza B virus isolation & purification
Influenza, Human epidemiology
Travel
Subjects
Details
- Language :
- English
- ISSN :
- 0950-2688
- Volume :
- 124
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Epidemiology and infection
- Publication Type :
- Academic Journal
- Accession number :
- 10982075
- Full Text :
- https://doi.org/10.1017/s0950268899003738