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South Korea tightens avian influenza measures as winter migratory birds arrive
Версия 2: A third outlet, Chosun Ilbo, has now reported the government's announcement, and it gives a waterbird count that differs from Yonhap's, while the figures on duck-family birds and the prevention measures are unchanged.
Коротко
A survey of 10 major migratory bird sites in South Korea from 25 to 27 September counted 57,036 waterbirds, confirming winter migrants have begun arriving, Yonhap reported. Duck-family birds, which are highly susceptible to highly pathogenic avian influenza, numbered 18,678, up 189.7% from a year earlier, or about 2.9 times. The agriculture ministry issued a high-risk alert on 30 September and authorities are expanding surveillance and disinfection ahead of the main arrival expected this month.
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South Korean quarantine authorities are strengthening measures against highly pathogenic avian influenza as winter migratory birds begin arriving, with duck-family birds — a group that is highly susceptible to the virus — up about 2.9 times from a year earlier, according to Yonhap. Newsis also reported the 2.9-fold rise in its headline and described the response as pre-emptive action against the introduction of the virus. [ 1 , 2 ]
Yonhap, citing the agriculture ministry and the climate and energy ministry, said the National Institute of Biological Resources surveyed 10 major migratory bird sites nationwide from 25 to 27 September and counted 57,036 waterbirds, confirming that some winter migratory birds had begun to arrive. Chosun Ilbo's summary reported the same survey period and the same number of sites, but gave the waterbird count as 50,736. [ 2 , 3 ]
At the Han River estuary, Sihwa Lake and Sapgyo Lake, 23,893 waterbirds were counted, up 53.1% from September last year, and duck-family birds there totaled 18,678, up 189.7%, according to the figures Yonhap reported. The report also cited World Organisation for Animal Health data showing 2,957 detections of highly pathogenic avian influenza in wild birds abroad in January to August, more than double the 1,432 recorded in the same period last year. [ 2 ]
The climate ministry has expanded migratory bird surveillance points from 102 to 112 and is intensively monitoring 22 locations identified as early stopover sites or as high-risk for avian influenza outbreaks, Yonhap reported. It plans to work with Mongolia and Japan to analyse migratory routes and behaviour using tracking devices, and to use the genetic types of viruses detected in the country to predict introduction and spread. [ 2 ]
The agriculture ministry issued a high-risk avian influenza alert for livestock farms nationwide from 30 September and is disinfecting roads around migratory bird habitats and farm entrances, with 280 livestock-vehicle control zones designated, according to Yonhap. If highly pathogenic avian influenza is detected in wild birds, a 10km radius around the site will become a surveillance area with 21 days of restrictions on the movement of people and vehicles, along with testing and intensive disinfection at nearby poultry farms. [ 2 ]
Both Yonhap and Chosun Ilbo reported that the government expects the main southward movement of winter migratory birds in mid-to-late October, and that it is tightening surveillance and disinfection before that arrival. Chosun Ilbo's summary did not include a figure for the duck-family increase. [ 2 , 3 ]
Почему это важно
Authorities are acting before the main winter bird arrival this month, when contact between wild birds and poultry farms is most likely. The rise in duck-family birds and in overseas detections of the virus points to higher pressure on South Korea's poultry sector, although the documents report no domestic detection in wild birds so far.
Ключевые факты
- A survey of 10 major migratory bird sites nationwide from 25 to 27 September counted 57,036 waterbirds, confirming some winter migratory birds had arrived, according to Yonhap. [ 2 ]
- At the Han River estuary, Sihwa Lake and Sapgyo Lake, 23,893 waterbirds were counted, up 53.1% from September last year. [ 2 ]
- Duck-family birds, which are highly susceptible to highly pathogenic avian influenza, totaled 18,678, up 189.7% year on year, or about 2.9 times. [ 1 , 2 ]
- The World Organisation for Animal Health recorded 2,957 detections of highly pathogenic avian influenza in wild birds abroad in January–August, against 1,432 in the same period last year. [ 2 ]
- The agriculture ministry issued a high-risk avian influenza alert for livestock farms nationwide from 30 September. [ 2 ]
- The climate ministry expanded migratory bird surveillance points from 102 to 112 and is intensively monitoring 22 locations. [ 2 ]
- If highly pathogenic avian influenza is detected in wild birds, a 10km radius around the site will be designated a surveillance zone with 21 days of movement controls. [ 2 ]
- The government expects the main southward movement of winter migratory birds in mid-to-late October. [ 2 , 3 ]
Подтверждено несколькими источниками
- Duck-family bird numbers in South Korea rose about 2.9 times from a year earlier. [ 1 , 2 ]
- South Korean authorities are strengthening avian influenza surveillance and disinfection ahead of the main winter migratory bird arrival. [ 1 , 2 , 3 ]
- The agriculture ministry issued a high-risk avian influenza alert for farms nationwide. [ 2 ]
- The government expects the main southward movement of winter migratory birds in mid-to-late October. [ 2 , 3 ]
Пока неясно
- The total number of waterbirds counted in the 25–27 September survey. Yonhap reports 57,036 waterbirds, while Chosun Ilbo's summary gives 50,736; the documents do not reconcile the two figures.
- Whether highly pathogenic avian influenza has been detected in wild birds in South Korea this season. The documents describe preventive measures and overseas detection trends but report no domestic detection.
- The full breakdown and location detail of the 25–27 September survey beyond the three sites named. Only the Han River estuary, Sihwa Lake and Sapgyo Lake are specified; the other seven of the 10 surveyed sites are not identified.
Что пишут местные СМИ
Хронология, местное время
- The National Institute of Biological Resources surveys 10 major migratory bird sites nationwide, through 27 September. [ 2 , 3 ]
- The agriculture ministry issues a high-risk avian influenza alert for livestock farms nationwide and begins disinfecting roads around bird habitats and farm entrances. [ 2 ]
- Newsis and Yonhap publish reports on the migratory bird survey and the avian influenza response. [ 1 , 2 ]
- Chosun Ilbo publishes its summary of the government's announcement. [ 3 ]