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Specific features of African swine fever control activities in China

https://doi.org/10.29326/2304-196X-2023-12-3-240-245

Abstract

African swine fever is a highly contagious viral disease of pigs; however, no vaccines are available to control it. Currently the disease causes significant economic damage in many countries. The Republic of China is the first country in Southeast Asia, which officially reported the African swine fever outbreak in 2018. The disease further spread to all provinces of the country with 200 outbreaks in domestic pigs and 10 outbreaks in wild boar in total; herewith the overall population of pigs de-creased dramatically, approximately by 180 million animals. Following the confirmation of the first African swine fever outbreak, the PRC Ministry of Agriculture and Rural Affairs launched the “African Swine Fever Contingency Plan and Emergency Response”, w hich facilitated the disease eradication and already by 2023, no new infection outbreaks had been reported. The country with the largest swine population in the world achieved rather moderate spread rates if compared to Europe.

In addition, the virus strains, which circulated in the Chinese territory, were genetically diverse and different in virulence, leading to a wide range of clinical signs manifested by diseased animals. Such aspects were supposed to complicate the eradication measures, but instead, they proved their effectiveness. The experience gained from the disease control in China is most certainly of interest for the Russian Federation, infected with African swine fever since 2008.

About the Authors

M. D. Lozovoy
ФГБУ «Федеральный центр охраны здоровья животных» (ФГБУ «ВНИИЗЖ»)
Russian Federation

Mikhail  D.  Lozovoy, Postgraduate Student, Information and Analysis Centre

Vladimir



S. V. Shcherbinin
ФГБУ «Федеральный центр охраны здоровья животных» (ФГБУ «ВНИИЗЖ»)
Russian Federation

Sergey V. Shcherbinin, Researcher, Information and Analysis Centre

Vladimir



A. K. Karaulov
ФГБУ «Федеральный центр охраны здоровья животных» (ФГБУ «ВНИИЗЖ»)
Russian Federation

Anton K. Karaulov, Candidate of Science (Veterinary Medicine), Head of Information and Analysis Centre

Vladimir



References

1. WOAH. World Animal Health Information System (WAHIS Interface). Режим доступа: https://wahis.woah.org/#/event-management.

2. The deadly pig virus that’s proving difficult to beat. Bloomberg. Режим доступа: https://www.bloomberg.com/news/articles/2018-08-23/thedeadly-african-virus-that-s-killing-chinese-pigs-quicktake.

3. Wang Q., Ren W., Bao J., Ge S., Li J., Li L., et al. The first outbreak of African swine fever was confirmed in China. Chinese Journal of Animal Health Inspection. 2018; 35 (9): 1–4. (in Chinese)

4. NormileD. Can China, the world’s biggest pork producer, contain a fatal pig virus? Scientistsfear the worst. Science. 2018; Aug. 21. DOI: 10.1126/science.aav1776.

5. WangT., SunY., Qiu H. J. African swine fever: an unprecedented disaster and challenge to China. Infect. Dis. Poverty. 2018; 7 (1):111. DOI: 10.1186/s40249-018-0495-3.

6. Zhou X., LiN., LuoY., LiuY., Miao F., ChenT., et al. Emergence of African swine fever in China, 2018. Transbound. Emerg. Dis. 2018. 65 (6): 1482–1484. DOI: 10.1111/tbed.12989.

7. Li L., Ren Z., Wang Q., Ge S., Liu Y., Liu C., et al. Infection of African swine fever in wild boar, China, 2018. Transbound. Emerg. Dis. 2019; 66 (3): 1395–1398. DOI: 10.1111/tbed.13114.

8. Tao D., Sun D., Liu Y., Wei S., Yang Z., An T., et al. One year of African swine fever outbreak in China. Acta Trop. 2020; 211:105602. DOI: 10.1016/j.actatropica.2020.105602.

9. Wen X., He X., Zhang X., Zhang X., Liu L., Guan Y., et al. Genome sequences derived from pig and dried blood pig feed samples provide important insights into the transmission of African swine fever virus in China in 2018. Emerg. Microbes Infect. 2019; 8 (1): 303–306. DOI: 10.1080/22221751.2019.156591510.

10. Shi K., Liu H., Yin Y., Si H., Long F., Feng S. Molecular characterization of African swine fever virus from 2019–2020 outbreaks in Guangxi Province, Southern China. Front. Vet. Sci. 2022; 9:912224. DOI: 10.3389/ fvets.2022.912224.

11. Chen W., Zhao D., He X., Liu R., Wang Z., Zhang X., et al. A sevengene-deleted African swine fever virusissafe and effective as a live attenuated vaccine in pigs. Sci. China. Life Sci. 2020; 63 (5): 623–634. DOI: 10.1007/ s11427-020-1657-9.

12. Sun E., Huang L., Zhang X., Zhang J., Shen D., Zhang Z., et al. Genotype I African swine fever viruses emerged in domestic pigs in China and caused chronic infection. Emerg. Microbes Infect. 2021; 10 (1): 2183–2193. DOI: 10.1080/22221751.2021.1999779.

13. Sun E., Zhang Z., Wang Z., He X., Zhang X., Wang L., et al. Emergence and prevalence of naturally occurring lower virulent African swine fever viruses in domestic pigs in China in 2020. Sci. China. Life Sci. 2021; 64 (5): 752–765. DOI: 10.1007/s11427-021-1904-4.

14. Wang X., Wang X., Zhang X., He S., Chen Y., Liu X., et al. Genetic characterization and variation of African swine fever virus China/GD/2019 strain in domestic pigs. Pathogens. 2022; 11 (1):97. DOI: 10.3390/pathogens11010097.

15. Ge S., Li J., Fan X., Liu F., Li L., Wang Q., et al. Molecular characterization of African swine fever virus, China, 2018. Emerg. Infect. Dis. 2018; 24 (11): 2131–2133. DOI: 10.3201/eid2411.181274.

16. Ma M., Wang H. H., HuaY., Qin F., Yang J. African swine fever in China: Impacts, responses, and policy implications. Food Policy. 2021; 102:102065. DOI: 10.1016/j.foodpol.2021.102065.

17. African swine feverreported inHong Kong. IAKrasnaya Vesna. 2023; February 13. Available at: https://rossaprimavera.ru/news/225111c2. (in Russ.)

18. African swine fever control in China was negatively assessed by the Netherlands. IA Krasnaya Vesna. 2023; March 22. Available at: https://rossaprimavera.ru/news/95777e64. (in Russ.)

19. Annual pig census – Total number of pigs. Pig333. Available at: https:// www.pig333.ru/pig-production-data/graficos/#5.


Review

For citations:


Lozovoy M.D., Shcherbinin S.V., Karaulov A.K. Specific features of African swine fever control activities in China. Veterinary Science Today. 2023;12(3):240-245. https://doi.org/10.29326/2304-196X-2023-12-3-240-245

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ISSN 2304-196X (Print)
ISSN 2658-6959 (Online)