| Number and percentage of outbreaks by disease | ||
|---|---|---|
| Disease name | Total_outbreaks | Percentage |
| Classical swine fever virus (Inf. with) | 190 | 31.7 |
| African swine fever virus (Inf. with) | 138 | 23.0 |
| Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) | 93 | 15.5 |
| Rabies virus (Inf. with) | 83 | 13.8 |
| High pathogenicity avian influenza viruses (Inf. with) (poultry) | 72 | 12.0 |
| Foot and mouth disease virus (Inf. with) | 11 | 1.8 |
| White spot syndrome virus (Inf. with) | 3 | 0.5 |
| Acute hepatopancreatic necrosis disease (2016-) | 2 | 0.3 |
| Koi herpesvirus (Inf. with) | 2 | 0.3 |
| Lumpy skin disease virus (Inf. with) | 2 | 0.3 |
| Peste des petits ruminants virus (Inf. with) | 2 | 0.3 |
| Aphanomyces invadans (Inf. with) (Epizootic ulcerative syndrome) | 1 | 0.2 |
| Newcastle disease virus (Inf. with) | 1 | 0.2 |
| TOTAL | 600 | 100.0 |
Animal health epidemic intelligence report - Asia and the Pacific
Incoporating official WAHIS data and active search intelligence
Period covered and objective
Quarterly 4 (Q4) 2025: 1/10/2025 – 31/12/2025
To drive early detection and preparedness across the Asia–Pacific region, this quarterly report provides an update on the animal disease landscape. It achieves this by integrating official data from WAHIS with non-official intelligence gathered through regional active search activities.
Summary of key points
Summary of WAHIS official data
Exceptional events (alert messages sent by WOAH Members): during Q4 2025, 36 exceptional animal disease events were reported. The majority were recurrences of a listed disease (26), with others related to first occurrences in a zone (2), first occurrences in a country (2), strain recurrences (5), or new strain in a country (1).
Top reported diseases: a total of 600 outbreaks for 13 diseases were reported. Classical swine fever was the most frequent, with 190 outbreaks, followed by African swine febver (138) and HPAI in non-poultry (93).
Reporting countries/territories: outbreaks were reported by 18 countries/territories. The most frequent reporters were: Japan (267 outbreaks) the Philippines (143), and Thailand (62).
Summary of epidemic intelligence (active search) findings
News item (information collected through the EIOS system) analysis: during Q4 2025, 12,502 news items were reviewed. Of these, 189 were identified as relevant to WOAH-listed or emerging diseases.
Top news topics: three diseases accounted for 76% of all relevant news items: HPAI (37%), ASF (27%), Rabies (12%)
News items by location: News items were detected in 17 countries/territories. The reporting was highly concentrated: a single country/territory accounted for 25% of all news, while the top four countries/territories made up 63% of the total.
Official reports from active search: following 15 communications sent to countries/territories, 3 official reports were received as a direct result of these active search efforts.
Official information Q4 2025
This section analyses the official information reported during Q4 2025, through the WAHIS system categorising reports by disease and affected country/territory.
During Q4 2025, a total of 36 exceptional events were reported to WOAH (events that started in the period Q4 2025). Twenty-six of these were related to the recurrence of a listed disease, 2 to the first occurrence of a disease in a zone, 2 to the first occurrence of a disease in a country, 5 to the recurrence of a strain, and 1 to the detection of a new strain in a country.
Six hundred outbreaks were reported (through immediate notification and follow – up reports) for 13 diseases.
The number and percentage of outbreaks reported in Asia-Pacific by disease in Q4 2025 is reported in the table below.
Exceptional event outbreaks were reported through immediate notifications and follow-up reports by 17 countries/territories in the region. The ones for which reporting was most frequent were Thailand, followed by Japan, Cambodia and Timor-Leste. Outbreaks distribution by disease is displayed in the map below
Active search activity Q4 2025
This section analyses the animal health situation in Asia-Pacific for Q4 2025, the trends in news items detections for diseases showing notable changes (increases or decreases). Finally, an analysis on the impact of the activity is provided. News items are presented based on data collected by the Epidemic Intelligence from Open Source EIOS system.
News items detected by diseases
Relevant news items were identified for 12 diseases and syndromes. HPAI was the most frequently detected disease, followed by ASF. The number of news items detected in Asia-Pacific by disease during Q4 2025 is reported in the table below.
| Reported outbreaks by disease and month | |||
|---|---|---|---|
| Disease | Oct | Nov | Dec |
| Anthrax | 7 | 0 | 0 |
| ASF | 14 | 9 | 4 |
| CCHF | 0 | 0 | 1 |
| FMD | 2 | 2 | 2 |
| Glanders | 0 | 0 | 2 |
| Hemorrhagic Septicemia | 0 | 1 | 1 |
| HPAI | 12 | 10 | 15 |
| LSD | 1 | 0 | 0 |
| Rabies | 6 | 3 | 3 |
| Unusual mortality | 1 | 2 | 0 |
| Varroosis | 0 | 1 | 0 |
| White spot syndrome | 0 | 0 | 1 |
| TOTAL | 43 | 28 | 29 |
Geographic distribution of news items detected
News items were detected for Q4 2025 in 17 countries/territories. 25% of the news items were detected in one country only, with 4 countries/territories accounted for 63% of all the news detected during the period.
General trend of news items detected
The graph below shows the dynamics in the number of detected relevant news articles, during Q4 2025 and compare them to previous quarterly (Q4 2025) period.
Trends by most detected disease
The trends for the diseases mostly recorded in the region are shown in the figure below.
You can click on disease name in the legend to select / deselect the disease(s)
Impact of the activity
In Q4 2025, 15 communications were sent to countries/territories in the region. The communication was related to Tropilaelaps infestation of honeybees (N=3), HPAI (N=3), ASF (N=3), Anthrax (N=2), unusual mortality (N=2), FMD (N=1), Glanders (N=1).
Three official reports were received in Q4 2025 as a result of active search efforts: 2 immediate notifications and 1 follow-up reports.
Notes
This report is generated using R and Quarto. All plots and tables are reproducible.