The key facts
- The second outbreak of highly pathogenic avian influenza this season has been confirmed in the city of Asahi, Chiba Prefecture
- About 40,000 laying hens will be culled
- Restriction zones have been established within radii of 3 and 10 km, and an epidemiological investigation team has been dispatched
Outbreak at a Farm in Chiba Prefecture
Japan's Ministry of Agriculture, Forestry and Fisheries on Friday confirmed the second outbreak of highly pathogenic avian influenza this season. The infection was detected at a poultry farm in the city of Asahi in Chiba Prefecture, where about 40,000 chickens are kept. Genetic tests returned a positive result at 8 a.m. local time.
How the Infection Was Detected
The problem was reported by the farmer himself: on Thursday he noticed unusual symptoms in the birds, after which an inspection and rapid testing were carried out, showing a positive result. The infection was then confirmed by genetic analysis.
Measures to Contain the Spread
The authorities intend to cull about 40,000 laying hens, and the carcasses will be disposed of by burning or burial. Within a 3 km radius of the farm, a zone restricting poultry movement is being established, and within a 10 km radius — restrictions on product shipments. Disinfection points will appear on major roads, and nearby poultry farms will undergo inspections.
Search for the Source and the Overall Situation
An epidemiological investigation team has been dispatched to determine the source of infection and possible transmission routes. The Ministry will convene a task force to combat bird flu to coordinate measures, and all prefectures have been urged to strengthen surveillance and promptly report suspected cases. According to the Ministry's assessment, eating chicken meat or eggs poses no risk of avian influenza infection under the current situation in Japan.
