Highly pathogenic avian influenza,
Pakistan
Information received on 26/06/2008 from Dr R. H. Usmani, Animal Husbandry Commissioner/CVO Government of Pakistan, As above, Ministry of Livestock and Dairy Development, Islamabad , Pakistan
Summary
Report type Immediate notification
Date of start of the event 17/06/2008
Date of confirmation of the event 19/06/2008
Report date 26/06/2008
Date submitted to OIE 26/06/2008
Date event resolved 19/06/2008
Reason for notification Recurrence of a listed disease
Date of previous occurrence 03/2008
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Laboratory (advanced), Necropsy
This event pertains to the whole country
Related reports Immediate notification (26/06/2008)
Follow-up report No. 1 (25/09/2008)
New outbreaks (1)
Outbreak 1 M/S Hamid poultry farm, Sawabi, Tordhair, NORTH-WEST FRONTIER
Date of start of the outbreak 17/06/2008
Outbreak status Resolved (19/06/2008)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 6000 4000 4000 2000 0
Affected population a commercial broiler flock 3 and 6 weeks old
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 6000 4000 4000 2000 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 66.67% 66.67% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Contact with wild species
Epidemiological comments Samples were received on 17 and 20 June 2008. Culling and disposal of birds along with disinfection of the infected premises were carried out on 22 June 2008 by the Rapid Response Team and a State veterinarian. The premise was closed for one month. Monitoring of the areas is ongoing. Ring vaccination with an H5 inactivated monovalent vaccine in a one-km-radius zone around the affected isolated farm is ongoing.
Control measures
Measures applied
  • Screening
  • Vaccination in response to the outbreak (s)
  • Disinfection / Disinfestation
  • Quarantine
  • Stamping out
  • No treatment of affected animals
Measures to be applied
  • Zoning
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds enzyme-linked immunosorbent assay (ELISA) 19/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds enzyme-linked immunosorbent assay (ELISA) 21/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds rapid tests 19/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds rapid tests 21/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 19/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 21/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds virus isolation 19/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds virus isolation 21/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds virus neutralisation test (VNT) 19/06/2008 Positive
National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory) Birds virus neutralisation test (VNT) 21/06/2008 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations