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Risk Assessment of African Swine Fever Virus Exposure to Sus scrofa in Japan Via Pork Products Brought in Air Passengers’ Luggage

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Ito, Satoshi and Bosch López, Jaime Alfonso and Jurado Díaz, Cristina and Sánchez-Vizcaíno, José Manuel and Isoda, Norikazu (2020) Risk Assessment of African Swine Fever Virus Exposure to Sus scrofa in Japan Via Pork Products Brought in Air Passengers’ Luggage. Pathogens, 9 (4). p. 302. ISSN 2076-0817

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Official URL: https://doi.org/10.3390/pathogens9040302




Abstract

In recent years, African swine fever (ASF) has become prevalent in many areas, including Asia. The repeated detection of the ASF virus (ASFV) genome in pork products brought in air passenger’s luggage (PPAP) was also reported from Japanese airports. In the present study, the risk of ASFV exposure to susceptible hosts in Japan via three different pathways was assessed. Two quantitative stochastic risk assessment models were built to estimate the annual probability of ASFV exposure to domestic pigs, which could be attributed to foreign job trainees or foreign tourists. A semi-quantitative stochastic model was built to assess the risk of ASFV exposure to wild boar caused by foreign tourists. The overall mean annual probability of ASFV exposure to domestic pigs via PPAP carried by foreign job trainees was 0.169 [95% confidence interval (CI): 0.000–0.600], whereas that by foreign tourists was 0.050 [95% CI: 0.000–0.214], corresponding to approximately one introduction every 5.9 and 20 years, respectively. The risk of ASFV exposure to domestic pigs was dispersed over the country, whereas that of wild boar was generally higher in the western part of Japan, indicating that the characteristics of the potential ASF risk in each prefecture were varied.


Item Type:Article
Uncontrolled Keywords:African swine fever; biosecurity; exposure assessment; import risk; risk analysis; wild boar
Subjects:Medical sciences > Veterinary > Swine
Medical sciences > Veterinary > Veterinary immunology
ID Code:65115
Deposited On:04 May 2021 15:47
Last Modified:06 May 2021 14:34

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