Table 4.
Farm level avian influenza virus detection in chickens from vaccinated and unvaccinated farms, Bangladesh, January 2022 to February 2022 (N = 400)
| Divisions | H5N1 Vaccination status | Number of farms tested | No. (%) of farms positive for influenza A | No. (%) of farm positive for influenza A/H5 | No. (%) of farms positive for influenza A/H9 |
|---|---|---|---|---|---|
| Dhaka | Vaccinated | 25 | 2 | - | 2 |
| Unvaccinated | 25 | 1 | - | 1 | |
| Chattogram | Vaccinated | 25 | - | - | - |
| Unvaccinated | 25 | - | - | - | |
| Sylhet | Vaccinated | 25 | - | - | - |
| Unvaccinated | 25 | 2 | - | 2 | |
| Rajshahi | Vaccinated | 25 | 3 | 1 | 3 |
| Unvaccinated | 25 | 6 | 2 | 5 | |
| Khulna | Vaccinated | 25 | 1 | - | 1 |
| Unvaccinated | 25 | - | - | - | |
| Barishal | Vaccinated | 25 | - | - | - |
| Unvaccinated | 25 | 1 | - | 1 | |
| Rangpur | Vaccinated | 25 | 2 | - | 1 |
| Unvaccinated | 25 | 1 | - | 1 | |
| Mymensingh | Vaccinated | 25 | 1 | - | 1 |
| Unvaccinated | 25 | 1 | - | 1 | |
| Total | 400 | 21 (5%) | 3 (1%) | 19 (5%) |