03/18/19 03:27

Situational Updates and Information on African swine fever in Asia and the Pacific

on Preparedness and Surveillance of African Swine Fever (ASF)

1. The current situation of ASF in Asia and the Pacific

This ASF update covers the period from the 8th to the 14th of March, 2019. A classification of the affected population (by backyard and farmed swine, and wild boar) was made considering their different roles in the epidemiology of the disease.

In this last period, China (People’s Rep. of), Vietnam and Mongolia sent updates on the ASF situation in the country through Follow-up reports (FURs).

Since the first occurrence of ASF in China (People’s Republic of) in August 2018, 117 outbreaks have been reported in 28 different administrative divisions, from which 84 have been resolved. Currently, 33 outbreaks in 14 different administrative divisions are still ongoing in China (People’s Rep. of).  In this period, China (People’s Rep. of) submitted 2 FURs, reporting one outbreak in a farm in Guangxi and another in backyard swine in Sichuan.

Furthermore, Vietnam has submitted one FUR since the last update. Since the 1st of February, 2019 (first occurrence in the country), 100 outbreaks have been reported in 17 administrative divisions, from which 21 were reported within the 8th and 14th of March. All of the outbreaks in Vietnam affected backyard swine generally from small villages.  

Finally, Mongolia submitted a new FUR the 13th of March, in which they closed 8 of the 11 previously ongoing outbreaks. A total of 6 administrative divisions have been affected since the first occurrence in the country (09 of January, 2019). There are now only three ongoing ASF outbreaks in two different administrative divisions of Mongolia.

The distribution of the new reported outbreaks in the current period and the ongoing outbreaks is represented in the map (figure 1).

The impact of African swine fever in Asia since August 2018 is detailed in figure 2, representing the cumulative number of animal losses (backyard and farmed swine) by administrative division and by country affected.

NOTE: “The losses are calculated based on the sum of dead and culled animals in the infected farm or backyard premises reported by outbreak.

OIE African Swine Fever portal is here.   OIE has been publishing ASF reports on bi-weekly basis on the website.   Please refer to WAHIS for the latest information.


2. Key Messages

In the absence of an effective vaccine against ASF virus, prevention in countries free of the disease depends on stringent import policies, ensuring that neither infected live pigs nor pork products are introduced into areas free of ASF.  This includes ensuring proper disposal of waste food from aircraft, ships or vehicles coming from infected countries and enhance biosecurity measures in particular in backyard or non-commercial pig farms.

  • In order to prevent introduction of ASF into your country:
    • Early detection and appropriate biosecurity are the main tools to prevent and control the spread of ASF virus.
    • Strengthen border vigilance activities such as strict enforcement of biosecurity and quarantine at all entry points into the country.  Inspection and quarantine of all live pigs and pig products entering the country.
    • Enhance awareness among all pig producers and other stakeholders (e.g., anyone involved in pig sector, traders, distributors, hunters, butchers etc) and private veterinarians of the impact of ASF. It is important to enhance on-farm biosecurity and understand clinical presentation of the disease.
    • Enhance passive surveillance and immediate reporting to the Veterinary Authority any suspect cases, especially high mortality events that may occur.
      • Due to the clinical similarity with other diseases, passive clinical surveillance always needs to be confirmed by laboratory.
      • Facilitate the submission of samples from suspected cases to a reference laboratory for an appropriate prompt diagnostic. 
      • OIE Reference Laboratories on ASF are ready to provide technical support for diagnostic and/or epidemiologic surveillance upon request by member countries.
    • Update your risk assessments and allocate sufficient resources to address the highest risks for the introduction and spread of ASF.
      • Swill feeding practices are considered one of the major risks for the introduction and spread of the virus.
    • Training of the national veterinary staff, clinical veterinarians and veterinary paraprofessionals, working in the pig sector on ASF disease detection, surveillance and control measures.
    • Regulate the movement of live pigs and their products according to the recommendations of the OIE international standards
  • Management of the ASF outbreak in domestic pigs is based on strict biosecurity and quarantine, movement control, culling and compensation.
  • Backyard/non-commercial pig farms are at high risk and need to enhance biosecurity.
  • Effective separation between wild and domestic pigs should be ensured.

 3. Resources and information on ASF

For more information, you may refer to the website below.

4. Awareness materials in the Member Countries

In response to the occurrence of ASF in the region, some Member Countries have prepared and used awareness materials in their countries.  Since a lot of people will be traveling in the region in the upcoming months due to the long holiday period, the raising awareness of ASF and the risk associated with pig products in the general community is important.  OIE RRAP would like to introduce some examples of the awareness materials prepared by and used in Member Countries for your reference.