OIE: Highly pathogenic avian influenza, Mexico
submited by kickingbird at Apr, 30, 2019 11:55 AM from OIE
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Summary
| Report type |
Follow-up report No. 2 |
| Date of start of the event |
06/03/2019 |
| Date of confirmation of the event |
10/03/2019 |
| Report date |
26/04/2019 |
| Date submitted to OIE |
27/04/2019 |
| Reason for notification |
Recurrence of a listed disease |
| Date of previous occurrence |
18/04/2018 |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Virus de la influenza aviar altamente pat骻ena |
| Serotype |
H7N3 |
| Nature of diagnosis |
Clinical, Laboratory (advanced) |
| This event pertains to |
a defined zone within the country |
| Related reports |
Immediate notification (01/04/2019)
Follow-up report No. 1 (16/04/2019)
Follow-up report No. 2 (26/04/2019)
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|
|
| Outbreak 1 |
Colon, Queretaro |
| Date of start of the outbreak |
08/04/2019 |
| Outbreak status |
Resolved (19/04/2019) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
138632 |
5 |
0 |
138632 |
0 | |
| Affected population |
The presence of highly pathogenic avian influenza was detected as part of active epidemiological surveillance in a poultry production unit in five birds that were subjected to organ sampling and did not show any clinical signs, as the rest of the flock. | |
| Outbreak 2 |
Mineral del Chico, Hidalgo |
| Date of start of the outbreak |
15/04/2019 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Backyard |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
598 |
178 |
172 |
0 |
0 | |
| Affected population |
A rural production unit with 598 birds, detected and reported to the competent authority by a self-employed veterinarian in order to carry out appropriate epidemiological monitoring. | |
| Summary of outbreaks |
Total outbreaks: 2 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
139230 |
183 |
172 |
138632 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
0.13% |
0.12% |
93.99% |
99.69% | |
| *Removed from the susceptible population through death, destruction and/or slaughter | |
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Epidemiology
| Source of the outbreak(s) or origin of infection |
|
| Epidemiological comments |
Active epidemiological surveillance has been established in Mexico as well as a (passive) notification system. These two strategies have identified two outbreaks, located in the region of low prevalence in which vaccination against the H7N3 avian influenza virus is applicable subject to prior authorisation by SENASICA. | |
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Control measures
| Measures applied |
- Movement control inside the country
- Surveillance outside containment and/or protection zone
- Surveillance within containment and/or protection zone
- Quarantine
- Vaccination permitted (if a vaccine exists)
- No treatment of affected animals
|
| Measures to be applied |
- Official disposal of carcasses, by-products and waste
- Stamping out
- Disinfection
- Ante and post-mortem inspections
| |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |
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