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Information received on 10/02/2020 from Dr Norio Kumagai, Director, Chief Veterinary Officer, Animal Health Division, Food Safety and Consumer Affairs Bureau,
Ministry of Agriculture, Forestry and Fisheries, Tokyo, Japan
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Epidemiology
| Source of the outbreak(s) or origin of infection |
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| Epidemiological comments |
1. The 56th affected farm (Okinawa city in Okinawa)
On February 1st, some pigs were found dead and it was reported to the Local Hygiene Service Centre (LHSC). The 56th affected farm is located within a 3-km-radius from the 52th, 53rd, 54th and 55th affected farms. RT-PCR for CSFV was conducted at the LHSC and it was found positive on February 2nd. On February 6th, stamping out and disinfection were completed at the 56th affected farm.
Note 1: On 15th October 2019, Japan amended the Specific Infections Livestock Disease Control Guidelines for CSF to allow vaccination in domestic pigs in designated prefectures (“vaccination recommended areas”). The vaccination in domestic pigs is practiced in the following prefectures: Gunma, Toyama, Ishikawa, Fukui, Nagano, Gifu, Aichi, Mie, Shiga, Saitama, Shizuoka, Yamanashi, Kanagawa, Tokyo, Kyoto, Niigata and Nara.
Note 2: When CSF outbreaks happen, Japan implements movement restrictions in the Shipment Restriction Zone (SRZ), which is established within 3-10 km radius of the affected farm, and in the Movement Restriction Zone (MRZ), which is established within 3km radius of the affected farm. SRZ will be lifted when all the results of active surveillance program are negative, and 17 days have passed after the completion of full implementation of control measures (stamping out, disinfection, etc.). MRZ will be lifted when all the results of active surveillance program are negative, and 28 days have passed after the completion of full implementation of control measures (stamping out, disinfection, etc.). |
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