HIGHLY PATHOGENIC AVIAN INFLUENZA IN CHINA (PEOPLE碨 REP. OF ~)
in wild birds
See also: 9 July 2004, 26 March 2004, 5 March 2004, 20 February 2004, 13 February 2004, 6 February 2004
(Date of previous outbreak of highly pathogenic avian influenza in the People´s Republic of China reported to the OIE: June 2004 [in poultry]).
Immediate notification report
Information received on 21 May 2005 from Mr Jia Youling, Director General, Veterinary Bureau, Ministry of Agriculture, Beijing:
Report date: 21 May 2005.
Nature of diagnosis: clinical and laboratory.
Date of initial detection of animal health incident: 4 May 2005.
Estimated date of primary infection: 15 April 2005.
Outbreaks:
| Location | No. of outbreaks |
| Qinqhai province, Gangcha county, Quanji town, Niannaisuoma village (in the central part of the country) | 1 |
Description of affected population: migratory birds, including bar-headed geese (Anser indicus), great black-headed gulls (Larus ichthyaetus), brown-headed gulls (Larus brunnicephalus), ruddy shelducks (Tadorna ferruginea) and great cormorants (Phalacrocorax carbo).
Total number of animals in the outbreak:
| species | susceptible | cases | deaths | destroyed | slaughtered |
| fau | ... | ... | 519 | 0 | 0 |
Diagnosis:
A. Laboratory where diagnosis was made: National Avian Influenza Reference Laboratory (Harbin Veterinary Research Institute, Chinese Academy of Agricutural Sciences).
B. Diagnostic tests used: RT-PCR(1) and intravenous pathogenicity index test (18 May 2005).
C. Causal agent: highly pathogenic avian influenza virus type H5N1.
Epidemiology:
A. Source of agent / origin of infection: under investigation.
B. Mode of spread: migratory birds.
C. Other epidemiological details: the site is an important rendezvous of migratory birds on one of their Asia-Europe routes.
Control measures:
- quarantine;
- movement control inside the country;
- zoning;
- vaccination.
(1) RT-PCR: reverse transcriptase - polymerase chain reaction