Situation update

Mongolia: Since its first report on 15 January 2019, Mongolia reported two waves of ASF outbreaks in 2019 and 2023-2024, both at the northern parts of the country and in Ulaanbaatar [reference1, reference2, reference3, reference4]. On 8 January 2025, a new outbreak started in Bayankhutag sum (district) in central east of the country [reference5].

Democratic People’s Republic of Korea: The Ministry of Agriculture confirmed the occurrence of the first ASF outbreak in Chagang-do on 23 May 2019 [reference1]. Media also reported ASF outbreaks in 2024 in Anju City, Bukchang-gun, Mundeok-gun and Gaecheon City in Pyeongannam-do, at the central part of the country [reference2].

Republic of Korea: Since the Ministry of Agriculture, Food and Rural Affairs (MAFRA) confirmed the first ASF outbreak on 17 September 2019, ASF was detected in 79 domestic pig farms: Gyeonggi-do (32), Incheon City (5), Gangwon-do (21), Gyeongsangbuk-do (6), Chungcheongnam-do (4), Jeollanam-do (4), Jeollabuk-do (2) and Gyeongsangnam-do (5) [reference1, reference2, reference3]; and in 4 431 wild boars in Gyeonggi-do, Gangwon-do, Chungcheongbuk-do, Gyeongsangbuk-do, Ulsan City, Busan City, and Daegu City [reference4, reference5, reference6, reference7]. In 2026, 24 ASF outbreaks in domestic pigs have been confirmed in multiple provinces, exceeded more than three times of the total in 2025. Epidemiological investigations by MAFRA showed that the viruses from recent outbreaks in domestic pigs were consistently classified as IGR-I, IGR-II type virus). Whole genome sequencing currently available indicated that six out of seven (excluding the one in Pocheon) were 99.99% similar (genome-wide sequence identity) to the virus from Dangjin City in November 2025, suggesting a common source or closely linked introduction pathway. Notably, the pattern of current outbreaks differed from previous years, an increased frequency of cases in piglets has been observed. IGR-I ASF genetic material was detected in porcine plasma protein-derived feed ingredients and compound feed through nationwide intensive testing program of carcasses and environmental samples, suggesting contaminated feed supply as a contributing risk factor [reference8, reference9]. In parallel, detections of ASF-positive wild boars have shown a marked increase in 2026, with 14 detections in January, 63 in February, and 28 as of 17 March [reference10].except two outbreaks in Pocheon City (24 January and 6 February, both caused by IGR-II type virus). Whole genome sequencing currently available indicated that six out of seven (excluding the one in Pocheon) were 99.99% similar (genome-wide sequence identity) to the virus from Dangjin City in November 2025, suggesting a common source or closely linked introduction pathway. Notably, the pattern of current outbreaks differed from previous years, an increased frequency of cases in piglets has been observed. IGR-I ASF genetic material was detected in porcine plasma protein-derived feed ingredients and compound feed through nationwide intensive testing program of carcasses and environmental samples, suggesting contaminated feed supply as a contributing risk factor [reference11, reference12]. In parallel, detections of ASF-positive wild boars have shown a marked increase in 2026, with 14 detections in January, 63 in February, and 28 as of 17 March [reference13].

China: Since the Ministry of Agriculture and Rural Affairs (MARA) confirmed the first outbreak in Liaoning Province on 3 August 2018, ASF was detected in 32 provinces/autonomous regions/municipalities/special administrative region. The latest ASF outbreak was reported on 17 December on a farm in Lau Fau Shan Area, Yuen Long District, Hong Kong SAR; 2 374 pigs were culled in December 2025 [reference1, reference2, reference3, reference4].

The Philippines: Since the Department of Agriculture (DA) confirmed the first outbreak in July 2019 [reference1], ASF outbreaks have occurred in 76 of its 82 provinces; as of 13 March 2026, 31 barangays in 11 municipalities of seven provinces reported having active ASF cases and this shows a sharp decline from 98 barangays reported as of 31 December 2025 [reference2].

Singapore: The first cases of ASF was confirmed in February 2023 in wild boar carcasses [reference1, reference2]. In April 2023, ASF was detected at a slaughterhouse in carcasses of live pigs imported from Bulan Island, Indonesia [reference3, reference4].

Malaysia: The first ASF outbreaks were confirmed in February 2021 in Sabah State on Borneo [reference1]. Since then, a total of 240 outbreaks has been detected in both domestic and wild pigs: 2021 (Borneo 65/Peninsula 24), 2022 (10/52), 2023 (0/28), 2024 (0/1), 2025 (3/58) [reference2, reference3]. ASF outbreaks were reported in domestic pigs in Selangor and Sarawak [reference4, reference5], both started in January 2026.

Indonesia: Since the Ministry of Agriculture reported an ASF outbreak in North Sumatra Province in 2019 [reference1, reference2], ASF has been officially reported in 32 out of 34 provinces on Sumatera, Bangka Belitung, Riau, Java, Kalimantan, Bali, Sunda, Sulawesi and New Guinea Islands [reference3, reference4]. ASF cases in wild boar population have been reported in Sumatera Island since 2020 and also on Kalimantan and Sulawesi Islands. In February 2026, four ASF outbreaks were reported in North Tapanuli Regency, North Sumatra Province and East Manggarai Regency, East Nusa Tenggara Province [reference5].

Timor-Leste: After the Ministry of Agriculture and Fisheries announced the confirmation of ASF outbreak on 27 September 2019, ASF spread to almost all villages within one year. From December 2021 and March 2023, there were small outbreaks of mortality 100-pigs level and were controlled through quick diagnosis and response [reference].

Papua New Guinea: The National Agriculture Quarantine and Inspection Authority (NAQIA) confirmed ASF outbreaks in Southern Highlands Province in March 2020 [reference1, reference2]. The status of ASF in Papua New Guinea was as follows: i) infected zone – Hela, Southern Highlands, Western Highlands, Enga and Jiwaka provinces; ii) buffer zone – Eastern Highlands and Simbu provinces; iii) non-infected zone – the rest of the country. In 2026, ASF outbreak has been reported in West Sepik Province (WSP) in January [reference3].

Viet Nam: Since the first ASF outbreak was confirmed on 19 February 2019, all provinces/municipalities have experienced outbreaks. The number of outbreaks has decreased from >6 000 outbreaks (2019) to 1 256 (2022) [reference1, reference2], and 714 in 2023 [reference3], but increased to 1 609 in 2024 [reference4]. In 2025, a total of 2 782 outbreaks have been confirmed. Nationwide, over 1.27 milion pigs have been culled, which represents more than 13-fold increase in 2025 compared to 2024. The peak of outbreaks occurred in July and August, primarily affecting small-scale farms that failed to meet biosecurity standards [reference5]. In 2026, as of 12 March, 261 outbreaks have been reported in 24 provinces/municipalities, leading to the destruction of over 14 700 pigs [reference6].

Lao People’s Democratic Republic: Since the Ministry of Agriculture and Forestry confirmed the first outbreak in Salavan Province on 20 June 2019, ASF outbreaks were reported in all 18 provinces [reference1]. On 19 February 2025, an ASF outbreak was confirmed in Thathon District, Xaysomboun Province [reference2, reference3].

Cambodia: Since the Ministry of Agriculture, Forestry and Fisheries confirmed the first outbreak in Ratanakiri Province in April 2019, ASF outbreaks were detected in five provinces namely Rottanakikiri, Tbong Khmom, Svayrieng, Takeo and Kandal provinces [reference1]. The latest confirmed ASF outbreaks occurred in late July 2025 in village/backyard pigs in Siem Reap, Kampong Cham and Battambang provinces [reference2].

Thailand: Department of Livestock Development (DLD) announced in January 2022 the confirmation of ASF in pet pigs in Bangkok [reference1]. A total of 114 outbreaks in 35 out of 77 provinces/special administrative area were reported during the epidemic [reference2]. The latest reported outbreak was in Chiang Mai Province in June 2024 [reference3].

Myanmar: Since the Ministry of Agriculture, Livestock and Irrigation confirmed the first ASF outbreak in August 2019, a total of 12 outbreaks have been reported in Shan (8), Kachin (1), Kayah (1) states, and Sagaing Region (2) [reference1 , reference2 , reference3 , reference4 , reference5 , reference6 , reference7 , reference8]. The last outbreak was in August 2023 in Shan State near Lao-Myanmar-Thai border [reference9]. Media reported new outbreaks and multiple suspected pig deaths in the southern Tanintharyi Division, namely in Launglon Township, Dawei District. According to the report, the outbreaks started in early November, a lot of pigs have died [reference10].

Bangladesh: The first ASF outbreak in Bangladesh was reported on 21 December 2023 on a government development pig farm located in Rangamati Sadar in Rangamati District, Chittagong Division [reference].

Bhutan: Since the first ASF outbreak occurred in May 2021 [reference1], ASF outbreaks in domestic pigs have been reported in ten districts, including the detection in wild boars in Bumthang District [reference2, reference3]. In 2025, ASF outbreaks were confirmed Paro, Sarpang, Wangdue Phodrang, Zhemgang, Dagana, Chhukha districts [reference4, reference5, reference6, reference7, reference8, reference9, reference10] and Tsirang District [reference11, reference12]. In 2026, the first outbreak was confirmed in Chhukha District on 5 January [reference13, reference14].

Nepal: Since the first ASF outbreaks occurred in Kathmandu Valley in March 2022, ASF outbreaks were detected in all seven provinces namely Bagmati, Gandaki, Karnali, Koshi (Province No.1), Lumbini, Madhesh and Sudurpashchim [reference1]. In 2026, 12 new outbreaks were reported in domestic pigs in Koshi, Gandaki, Bagmati and Sudurpashchim provinces in January and February [reference2].

India: Since the first ASF outbreaks occurred in Assam State in January 2020 [reference1], ASF outbreaks have officially been reported in 22 out of its 28 states and National Capital Territory. In 2024, a total of 99 308 pigs died and 51 261 pigs have been destroyed [reference2]. In Mizoram State, ASF was first reported on 21 March 2021 and become endemic [reference3]; 9 711 pigs died due to ASF between March and December 2025, according to media [reference4]. In Assam State,  ASF outbreaks have been reported in seven districts namely Dhemaji,  Kamrup, Lakhimpur, Sivasagar, Darrang, Jorhat and Dibrugarh, according to media [reference5, reference6, reference7]. In Manipur State, a new ASF outbreak has been confirmed in late November, on a pig farm in Imphal East District [reference8]. The media also reported new outbreaks in Maharashtra State in late November [reference9, reference10] and Kerala State on 16 December [reference11], affecting multiple districts and cities.

Disputed territory (Arunachal Pradesh): In April 2020, ASF outbreak occurred in eight districts [reference1, reference2]. Deaths of wild boars were also reported, according to media [reference3, reference4]. Between December 2021 and February 2022, ASF was confirmed in pigs died in Nirjuli area [reference5]; in 2022, nearly 10 000 pigs were lost due to ASF [reference6]. In 2025, ASF outbreaks have been confirmed in Luaksim village [reference7], West Siang District [reference8] and Papum Pare District [reference9], according to media.

Sri Lanka: The Department of Animal Production and Health declared the confirmation of the first ASF case on 25 October 2024 [reference1]. Initially, ASF was confirmed in Western Province and North Western Province [reference2]. Meanwhile, over 100 wild boars have been found dead in several forest areas in Southern and Uva provinces, and the samples tested positive for both ASF and PRRS [reference3, reference4], according to media. On 2 January 2025, additional 135 ASF confirmation on pig farms in 13 districts in 6 out of 9 provinces: Central (2 districts), North Central (2), North Western (2), Sabaragamuwa (2), Uva (2) and Western (3) [reference5]. As of 3 July, a total of 67 000 pigs and wild boars have died and at least 1 594 pig farms have been affected by ASF, according to media [reference6, reference7].