Outbreak of African Swine Fever, Vietnam, 2019

Le, Van Phan; Jeong, Dae Gwin; Yoon, Sun‐Woo; Kwon, Hye-Min; Trinh, Thi Bich Ngoc; Nguyễn, Thị Lan; Bui, Thi To Nga; Oh, Jeongseog; Kim, Joon Bae; Cheong, Kwang Myun; Tuyen, Nguyen Van; Bae, Eun-Hye; Vu, Thi Thu Hang; Yeom, Minjoo; Na, Woonsung; Song, Daesub

doi:10.3201/eid2507.190303

Cited by 122 publications

(99 citation statements)

References 5 publications

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“…Some northern provinces in the Northeast and Red River Delta areas are the main areas of intensive pig production in northern Vietnam and constitute prime locations for porcine diseases, including emergence of highly virulent porcine reproductive and respiratory syndrome (PRRS) (Dietze 2011;Lee et al 2019). Recently, African swine fever (ASF) was also first detected in the Red River Delta (Hung Yen and Thai Binh provinces) on 19 February 2019 (Le et al 2019) and quickly spread to 24 provinces in the Red River Delta, Northeast, Northwest, and North Central Coast regions (Food and Agriculture Organization 2019). Therefore, it is necessary to detect PEDV-positive farms and implement strict biosecurity measures to prevent spread of PEDV to other pig production regions in Vietnam such as dividing truck for pig carrying assigning from different farms based on their PEDV infection status to prevent the spread of PEDV between farms.…”

Section: Discussionmentioning

confidence: 99%

A descriptive survey of porcine epidemic diarrhea in pig populations in northern Vietnam

Ngan

Yamazaki

Bui

et al. 2020

Trop Anim Health Prod

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Porcine epidemic diarrhea (PED) virus (PEDV) is a globally emerging and re-emerging epizootic swine virus that causes massive economic losses in the swine industry, with high mortality in piglets. In Vietnam, PED first emerged in 2009 and has now developed to an endemic stage. This is the first cross-sectional survey performed to evaluate the proportion of PEDV-positive swine farms in Vietnam from January 2018 to February 2019. Fecal samples from 327 pig farms in northern Vietnam were collected and tested for PEDV infection by reverse transcription-loop-mediated isothermal amplification (RT-LAMP) method. The proportion of PEDV-positive farms was 30.9% and PEDV-positive farms were distributed throughout the study area. The highest proportion of PEDV-positive farms was 70% (7/10) among nucleus production type farms (P < 0.05). Higher proportions of PEDV-positive farms were found in the Northeast and Red River Delta areas, which are the major areas of pig production (P < 0.05). The proportion of PEDV-positive farms was higher among larger farms (P < 0.05). Our findings illustrate the high proportion of PEDV-positive farms in the Vietnamese pig population and will help to better understand the epidemiological dynamics of PED infection, to estimate impact, and establish and improve prevention and control measures.

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Section: Discussionmentioning

confidence: 99%

A descriptive survey of porcine epidemic diarrhea in pig populations in northern Vietnam

Ngan

Yamazaki

Bui

et al. 2020

Trop Anim Health Prod

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“…In February 2019, ASF outbreak was first confirmed in a northern province of Vietnam by Vietnam Department of Livestock Production, Ministry of Agriculture and Rural Development ( MARD, 2019 ). The ASF virus isolated belonging to genotype 2 was officially reported shortly after, with 100% similarity to the Chinese strain ( Le et al, 2019 ). The occurrence of this ASF outbreak, though it may have been predicted a risk transmission couples of months earlier while the Chinese pig herds had been undergoing the ASF epidemics.…”

Section: Asf Penetration Into the Vietnamese Swine Herds And Its Impamentioning

confidence: 99%

The Future of the Pig Industry After the Introduction of African Swine Fever into Asia

2020

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“…The official estimate is that 21 per cent of the pig population was lost, but according to a report in Pig Progress the figure could be as high as 40 per cent and outbreaks continue to occur. 10 The most likely source of infection was considered to be infected pork products from China, as the first outbreaks occurred in northern Vietnam close to China (Le et al 2019).…”

Section: Vietnammentioning

confidence: 99%

Current status of African swine fever

Penrith

2020

CABI Agric Biosci

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African swine fever is a serious viral disease of domestic pigs and Eurasian wild boars that poses a major threat to pig production. For more than thirty years after its discovery in East Africa it was limited to eastern and southern Africa, where it is believed to have originated. The ability of the causative virus to remain viable for long periods in raw or insufficiently cooked pork products has enabled it, through travel and trade, to spread widely throughout sub-Saharan Africa and to other continents. In the second half of the 20 th century it had caused outbreaks in the majority of African countries where pigs are produced, as well as in a number of European countries, two of the Caribbean islands, and Brazil. By the turn of the century it had been eradicated from all non-African countries except the Italian island of Sardinia. In 2007 African swine fever arrived in the Republic of Georgia, and has subsequently spread insidiously into other Transcaucasian countries, Russia and some of its neighbours. In 2014 it reached the Baltic States and Poland through infected wild boars, and has become established in several wild boar populations from which it is difficult to eradicate. Most recently, in 2018 the first outbreaks were reported in China, home to half of the world's pig population, where it spread with unprecedented rapidity throughout China and to several other countries in the region, including the island nations of Philippines, Indonesia, Timor-Leste and Papua New Guinea. These events have posed new challenges for control, including some that parallel the situation in Africa, where poor people rely on pigs produced at subsistence level to provide for their needs and where pigs may also be socially and culturally important. The central role that humans play in the maintenance and spread of African swine fever has again been emphasised. This review describes the current status of African swine fever globally and the trends and challenges for management that face veterinarians and pig industries at all levels worldwide.

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Outbreak of African Swine Fever, Vietnam, 2019

Cited by 122 publications

References 5 publications

A descriptive survey of porcine epidemic diarrhea in pig populations in northern Vietnam

A descriptive survey of porcine epidemic diarrhea in pig populations in northern Vietnam

The Future of the Pig Industry After the Introduction of African Swine Fever into Asia

Current status of African swine fever

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