CIENCIASMEDICASNEWS: Ahead of Print - Outbreak of African Swine Fever, Vietnam, 2019 - Volume 25, Number 7—July 2019 - Emerging Infectious Diseases journal

sábado, 11 de mayo de 2019

Ahead of Print - Outbreak of African Swine Fever, Vietnam, 2019 - Volume 25, Number 7—July 2019 - Emerging Infectious Diseases journal - CDC

Outbreak of African Swine Fever, Vietnam, 2019

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Van Phan Le1

, Dae Gwin Jeong1, Sun-Woo Yoon, Hye-Min Kwon, Thi Bich Ngoc Trinh, Thi Lan Nguyen, Thi To Nga Bui, Jinsik Oh, Joon Bae Kim, Kwang Myun Cheong, Nguyen Van Tuyen, Eunhye Bae, Thi Thu Hang Vu, Minjoo Yeom, Woonsung Na, and Daesub Song

Author affiliations: Vietnam National University of Agriculture, Hanoi, Vietnam (V.P. Le, T.B.N. Trinh, T.L. Nguyen, T.T.N. Bui); Korea Research Institute of Bioscience and Biotechnology, Daejeon,; South Korea (D.G. Jeong, S.-W. Yoon, H.-M. Kwon); Median Diagnostics, Chuncheon-si, South Korea (J. Oh, J.B. Kim, K.M. Cheong); Gold Coin, Hai Duong, Vietnam (N.V. Tuyen); Korea University, Sejong, South Korea (E. Bae, T.T.H. Vu, M. Yeom, D. Song); Chonnam National University, Gwangju, South Korea (W. Na)

Abstract

African swine fever is one of the most dangerous diseases of swine. We confirmed the 2019 outbreak in Vietnam by real-time reverse transcription PCR. The causative strain belonged to p72 genotype II and was 100% identical with viruses isolated in China (2018) and Georgia (2007). International prevention and control collaboration is needed.

Since its first identification in East Africa in the early 1900s, African swine fever (ASF) spread to Kenya in the 1920s; transcontinental outbreaks in Europe and South America in the 1960s and in Georgia (Caucasus) in 2007 led to subsequent transmission to neighboring countries east of Georgia. Along with the outbreaks in the eastern territory of the Russian Federation, acute ASF outbreaks were reported in China in 2018 (1).

During January 15–31, 2019, a disease outbreak at a family-owned backyard pig farm in Hung Yen Province, Vietnam, was reported. The farm, ≈50 km from Hanoi and 250 km from the China border, housed 20 sows. In the early stage of the outbreak, 1 piglet and 1 sow exhibited marked redness all over the body, conjunctivitis, and hemorrhagic diarrhea. Breeding gilts demonstrated anorexia, cyanosis, and fever (>40.5°C).