Foot and mouth disease

Foot and mouth disease (FMD) is a severe, highly contagious viral disease of livestock that has a significant economic impact. The disease affects cattle, swine, sheep, goats and other cloven-hoofed ruminants. It is a transboundary animal disease (TAD) that deeply affect the production of livestock and disrupting regional and international trade in animals and animal products. The disease is estimated to circulate in 77% of the global livestock population, in Africa, the Middle East and Asia, as well as in a limited area of South America. Countries that are currently free of FMD without vaccination remain under constant threat of an incursion. Seventy-five percent of the costs attributed to FMD prevention and control are incurred by low income and lower-middle income countries. Africa and Eurasia are the regions which incur the largest costs, accounting for 50% and 33% of the total costs respectively. FMD is caused by an Aphthovirus of the family Picornaviridae, seven strains (A, O, C, SAT1, SAT2, SAT3, and Asia1) are endemic in different countries worldwide. Each strain requires a specific vaccine to provide immunity to a vaccinated animal. Its prevention is based on the presence of early detection and warning systems and the implementation of effective surveillance among other measures. FMD is the first disease for which the OIE established an official list of disease-free countries which can be officially recognised as free of the disease either in their entirety or in defined zones and compartments.

What is FMD?

Foot and mouth disease (FMD) is a severe, highly contagious viral disease of livestock that has a significant economic impact. The disease affects cattle, swine, sheep, goats and other cloven-hoofed ruminants.

Intensively reared animals are more susceptible to the disease than traditional breeds. The disease is rarely fatal in adult animals, but there is often high mortality in young animals due to myocarditis or, when the dam is infected by the disease, lack of milk.

FMD is characterised by fever and blister-like sores on the tongue and lips, in the mouth, on the teats and between the hooves. The disease causes severe production losses, and while the majority of affected animals recover, the disease often leaves them weakened and debilitated.

The organism which causes FMD is an aphthovirus of the family Picornaviridae. There are seven strains (A, O, C, SAT1, SAT2, SAT3, and Asia1) which are endemic in different countries worldwide. Each strain requires a specific vaccine to provide immunity to a vaccinated animal.

All seven of the serotypes have also been found in wildlife, although the latter does not play a significant role in the maintenance of the disease1. To date, the only confirmed reservoir in wildlife is African buffalo Syncerus caffer).

FMD is an OIE-listed disease and must be reported to the Organisation, as indicated in the OIE Terrestrial Animal Health Code.

It was the first disease for which the OIE established official status recognition. Member Countries can also apply for official endorsement of their national control programmes.


Transmission and spread

FMD is found in all excretions and secretions from infected animals. Notably, these animals breathe out a large amount of aerosolised virus, which can infect other animals via the respiratory or oral routes.

The virus may be present in milk and semen for up to 4 days before the animal shows clinical signs of disease.

The significance of FMD is related to the ease with which the virus can spread through any or all of the following:

  • infected animals newly introduced into a herd (carrying virus in their saliva, milk, semen, etc.);
  • contaminated pens/buildings or contaminated animal transport vehicles;
  • contaminated materials such as hay, feed, water, milk or biologics;
  • contaminated clothing, footwear, or equipment;
  • virus-infected meat or other contaminated animal products (if fed to animals when raw or improperly cooked);
  • infected aerosols (spread of virus from an infected property via air currents).

Animals that have recovered from infection may sometimes carry the virus and initiate new outbreaks of the disease.


Public health risk

FMD is not readily transmissible to humans and is not a public health risk.


Clinical signs

The severity of clinical signs will depend on the strain of virus, the exposure dose, the age and species of animal and the host immunity. Morbidity can reach 100% in susceptible populations. Mortality is generally low in adult animals (1–5%), but higher in young calves, lambs and piglets (20% or higher). The incubation period is 2–14 days.

Clinical signs can range from mild or inapparent to severe: they are more severe in cattle and intensively reared pigs than in sheep and goats.

The typical clinical sign is the occurrence of blisters (or vesicles) on the nose, tongue or lips, inside the oral cavity, between the toes, above the hooves, on the teats and at pressure points on the skin. Ruptured blisters can result in extreme lameness and reluctance to move or eat. Usually, blisters heal within 7 days (sometimes longer), but complications, such as secondary bacterial infection of open blisters, can also occur.

Other frequent symptoms are fever, depression, hypersalivation, loss of appetite, weight loss, growth retardation and a drop in milk production, which can persist even after recovery. Chronically affected animals are reported to have an overall reduction of 80% in milk yield. The health of young calves, lambs, and piglets may be compromised by lack of milk if dams are infected.

Death can occur before development of blisters due to a multifocal myocarditis. Myositis may also occur in other sites.

More information on the disease can be found in the OIE Technical Disease Card.


Diagnostic

The disease may be suspected based on clinical signs. However, FMD cannot be differentiated clinically from other vesicular diseases, such as swine vesicular disease, vesicular stomatitis and vesicular exanthema.

Confirmation of any suspected FMD case through laboratory tests is therefore a matter of urgency. Relevant tests are described in the OIE Terrestrial Manual.


Prevention and control

The initial measures described in the Global Food and Mouth disease control strategy are the presence of early detection and warning systems and the implementation of effective surveillance in accordance with the guidelines detailed in the OIE Terrestrial Code. They help monitor the occurrence and prevalence of the disease and allow characterisation of FMD viruses.

The implementation of the FMD control strategy varies from country to country and depends on the epidemiological situation of the disease:

In general, it is essential for livestock owners and producers to maintain sound biosecurity practices to prevent the introduction and spread of the virus.

Measures that are recommended at the farm level include:

  • control over people’s access to livestock and equipment;
  • controlled introduction of new animals into existing herds;
  • regular cleaning and disinfection of livestock pens, buildings, vehicles and equipment;
  • monitoring and reporting of illness;
  • appropriate disposal of manure and dead carcasses.

Contingency planning for potential outbreaks will identify the elements included in a response effort to eradicate the disease, such as:

  • humane destruction of all infected, recovered and FMD-susceptible contact animals;
  • appropriate disposal of carcasses and all animal products;
  • surveillance and tracing of potentially infected or exposed livestock;
  • strict quarantine and controls on movement of livestock, equipment, vehicles, and;
  • thorough disinfection of premises and all infected materials (implements, cars, clothes, etc.).

Use of vaccination

Depending on the FMD situation, vaccination strategies can be designed to achieve mass coverage or be targeted to specific animal sub-populations or zones. Vaccination programmes carried out in a target population should meet several critical criteria, mainly:

  • coverage should be at least 80%;
  • campaigns should be completed in the shortest possible time;
  • vaccination should be scheduled to allow for interference from maternal immunity;
  • vaccines should be administered in the correct dose and by the correct route;

The vaccines used should meet OIE standards of potency and safety, and the strain or strains in the vaccine must antigenically match those circulating in the field.

It is important to use inactivated virus vaccines, as inactivated virus does not have the ability to multiply in vaccinated animals. The use of live virus vaccines is not acceptable due to the danger of reversion to virulence

Vaccination can play a role in an effective control strategy for FMD, but the decision on whether or not to use vaccination lies with national authorities.

For more information on FMD vaccination, consult the related FAQ.


Geographical distribution

FMD is endemic in several parts of Asia and in most of Africa and the Middle East. In Latin America, the majority of countries apply zoning and are recognised as FMD-free, either with or without vaccination.

Australia, New Zealand, Indonesia, Central and North America, and continental Western Europe are currently free of FMD. However, FMD is a transboundary animal disease that can occur sporadically in any typically free area.


Global and regional activities

Global
Africa
Asia and the Pacific
Middle East

References

Last update: XX/08/2018

In accordance with the OIE procedure for official recognition of disease status, this page provides access to the List of OIE Members officially recognised free from foot and mouth disease (FMD) by the OIE through the adoption of a resolution by the World Assembly of Delegates (Assembly) of the OIE at the General Session in May every year.

A Member wishing to be officially recognised as disease-free by the OIE should submit the questionnaire laid out in Chapter 1.6. of the OIE Terrestrial Animal Health Code (Terrestrial Code) and comply with all requirements specified in the Terrestrial Code for FMD. The OIE Scientific Commission for Animal Diseases (Scientific Commission) is responsible for undertaking, on behalf of the Assembly, the assessment of OIE Members’ applications for their compliance with OIE standards. The assessment carried out by the Scientific Commission is based on the recommendations formulated by a relevant ad hoc Group composed of world specialists in disease control.

Subsequent to a disease outbreak or when the Scientific Commission determines that the conditions are not met anymore to demonstrate compliance with the relevant requirements of the Terrestrial Code, a disease status may be suspended. The Scientific Commission may decide to reinstate the suspended status when a Member has submitted an application which fulfils all the requirements requested for the recovery of official disease status laid out in the relevant Chapters of the Terrestrial Code. The suspensions and recoveries of disease status are announced by the Director General of the OIE in consultation with the Scientific Commission and the list of these is kept up to date until adoption of a new resolution by the Assembly the following May.

Members with a disease free status officially recognised by the OIE must submit an annual reconfirmation form by the end of November every year.


Map of FMD official status


List of FMD free Members

According to Resolution No. 7 (Adapted Procedure, June 2020)

FMD free where vaccination is not practised

Members recognised as FMD free where vaccination is not practised, according to the provisions of Chapter 8.8. of the Terrestrial Code, Edition 2019 :

AlbaniaGermanyNorth Macedonia (Rep. of)
AustraliaGreeceNorway
AustriaGuatemalaPanama
BelarusGuyanaPeru
BelgiumHaitiPhilippines
BelizeHondurasPoland
Bosnia and HerzegovinaHungaryPortugal (4)
BruneiIcelandRomania
BulgariaIndonesiaSan Marino
CanadaIrelandSerbia (5)
ChileItalySingapore
Costa RicaJapanSlovakia
CroatiaLatviaSlovenia
CubaLesothoSpain (6)
CyprusLithuaniaSuriname
Czech Rep.LuxembourgSweden
Denmark (1)MadagascarSwitzerland
Dominican RepublicMaltaThe Netherlands
El SalvadorMexicoUkraine
EstoniaMontenegroUnited Kingdom (7)
EswatiniNew CaledoniaUnited States of America (8)
Finland (2)New ZealandVanuatu
France (3)Nicaragua 
(1) Including Faroe Islands and Greenland.
(2) Including Åland Islands.
(3) Including French Guiana, Guadeloupe, Martinique, Réunion, Saint Pierre and Miquelon.
(4) Including Azores and Madeira.
(5)Excluding Kosovo administered by the United Nations
(6) Including Balearic Islands and Canary Islands.
(7) Including Guernsey (incl. Alderney and Sark), Isle of Man, Jersey and Falkland Islands (Malvinas). (A dispute exists between the Government of Argentina and the Government of the United Kingdom of Great Britain and Northern Ireland concerning sovereignty over the Falkland Islands (Malvinas) (see resolution 2065 (XX) of the General Assembly of the United Nations)..
(8) Including American Samoa, Guam, Northern Mariana Islands, Puerto Rico and US Virgin Islands.

FMD free where vaccination is practised

Members recognised as FMD free where vaccination is practised, according to the provisions of Chapter 8.8. of the Terrestrial Code, Edition 2019 :

Paraguay, Uruguay


FMD free zone where vaccination is not practised

Members having an FMD free zone(9) where vaccination is not practised, according to the provisions of Chapter 8.8. of the Terrestrial Code, Edition 2018 :

Argentina 
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+ one zone designated by the Delegate of Argentina in a document addressed to the Director General in January 2007;  

+ the summer pasture zone in the Province of San Juan as designated by the Delegate of Argentina in a document addressed to the Director General in April 2011;

+ Patagonia Norte A as designated by the Delegate of Argentina in a document addressed to the Director General in October 2013;
Bolivia
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+ one zone in the Macro-region of the Altiplano designated by the Delegate of Bolivia in documents addressed to the Director General in November 2011;

+ one zone consisting of the Department of Pando as designated by the Delegate of Bolivia in a document addressed to the Director General in August 2018;
Botswana 
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+ four zones designated by the Delegate of Botswana in documents addressed to the Director General in August and November 2014 as follows:

– one zone consisting of Zones 3c (Dukwi), 4b, 5, 6a, 8, 9, 10, 11, 12 and 13;
– one zone consisting of Zone 3c (Maitengwe);
– one zone covering Zone 4a;
– one zone covering Zone 6b;

+ one zone covering Zone 3b designated by the Delegate of Botswana in a document addressed to the Director General in August 2016;

+ one zone covering Zone 7 designated by the Delegate of Botswana in a document addressed to the Director General in August 2018;
Brazil 
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+ State of Santa Catarina designated by the Delegate of Brazil in a document addressed to the Director General in February 2007;
Chinese Taipei
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+ one zone covering Taiwan, Penghu and Matsu areas, as designated by the Delegate of Chinese Taipei in a document addressed to the Director General in September 2019;
Colombia
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+ one zone designated by the Delegate of Colombia in documents addressed to the Director General in November 1995 and in April 1996 (Area I – Northwest region of Chocó Department); 

+ one zone designated by the Delegate of Colombia in documents addressed to the Director General in January 2008 (Archipelago de San Andrés and Providencia);
Ecuador
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+ one zone consisting of the insular territory of the Galapagos, as designated by the Delegate of Ecuador in a document addressed to the Director General in August 2014;
Kazakhstan
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+ five zones as designated by the Delegate of Kazakhstan in a document addressed to the Director General in August 2018 consisting of as follows:

– Zone 1 consisting of West Kazakhstan, Atyrau, Mangystau and south-western part of Aktobe region;
– Zone 2 including north-eastern part of Aktobe region, southern part of Kostanay region and western part of Karaganda region;
– Zone 3 including northern and central parts of Kostanay region, western parts of North Kazakhstan and Akmola regions;
– Zone 4 including central and eastern parts of North Kazakhstan region and northern parts of Akmola and Pavlodar regions;
– Zone 5 including central and eastern parts of Karaganda region and southern parts of Akmola and Pavlodar regions;
Malaysia 
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+ one zone covering the provinces of Sabah and Sarawak as designated by the Delegate of Malaysia in a document addressed to the Director General in December 2003;
Moldova 
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+ one zone designated by the Delegate of Moldova in a document addressed to the Director General in July 2008;
Namibia Map+ one zone designated by the Delegate of Namibia in a document addressed to the Director General in February 1997.
Russia 
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+ one zone designated by the Delegate of Russia in documents addressed to the Director General in August 2015 and March 2016;
(9) For detailed information on the delimitation of zones of Members recognised as FMD free, enquiries should be addressed to the Director General of the OIE.

FMD free zone where vaccination is practised

Members having an FMD free zone(10) where vaccination is practised, according to the provisions of Chapter 8.8. of the Terrestrial Code, Edition 2019 :

Argentina
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+ two separate zones designated by the Delegate of Argentina in documents addressed to the Director General in March 2007 and October 2013, and in August 2010 and February 2014;
Bolivia
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+ one zone covering the regions of Chaco, Valles and parts of Amazonas and Altiplano as designated by the Delegate of Bolivia in documents addressed to the Director General in October 2013, February 2014 and August 2018;
Brazil
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+ one zone covering the territory of State of Rio Grande do Sul (documentation of September 1997);

+ one zone consisting of two merged zones designated by the Delegate of Brazil in documents addressed to the Director General in August 2010, September 2017 and September 2019, covering the States of Acre, Alagoas, Amapá, Amazonas, Bahia, Ceará, Espíritu Santo, Goiás,  Mato Grosso, Mato Grosso do Sul, Maranhão, Minas Gerais, Pará, Paraíba, Paraná, Pernambuco, Piauí, Rio de Janeiro, Rio Grande do Norte, Rondônia, Roraima, São Paulo, Sergipe, Tocantins and Distrito Federal;
Chinese Taipei
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+ one zone consisting of Kinmen County as designated by the Delegate of Chinese Taipei in a document addressed to the OIE Director General in September 2017;
Colombia
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+ four separated zones designated by the Delegate of Colombia in documents addressed to the Director General in September 2019 as follows:

– Zone I (Northern border) consisting of Departments of La Guajira, Cesar and part of the Department of Norte de Santander;
– Zone II (Eastern Border) consisting of part from Departments of Arauca, Vichada and Boyacá;
– Zone III (Trade) consisting of the Departments of Atlántico, Córdoba, Magdalena, Sucre and part of Antioquia, Bolívar and Chocó Departments;
– Zone IV (Rest of the country), consisting of the Departments of Amazonas, Caldas, Caquetá, Cauca, Casanare, Cundinamarca, Guainía, Guaviare, Huila, Meta, Nariño, Quindío, Putumayo, Risaralda, Santander, Tolima, Valle del Cauca, Vaupés and part of Antioquia, Bolívar, Boyacá, and Chocó Departments;
Ecuador
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+ one zone consisting of the continental Ecuador, as designated by the Delegate of Ecuador in a document addressed to the Director General in August 2014;
Kazakhstan
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+ five separate zones designated by the Delegate of Kazakhstan in documents addressed to the Director General in August 2016 as follows:

– one zone consisting of Almaty region;
– one zone consisting of East Kazakhstan region;
– one zone including part of Kyzylorda region, northern part of South Kazakhstan region, northern and central parts of Zhambyl region;
– one zone including southern part of Kyzylorda region and south-western part of South Kazakhstan region;
– one zone including south-eastern part of South Kazakhstan region and southern part of Zhambyl region;
Turkey
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+ one zone as designated by the Delegate of Turkey in a document addressed to the Director General in November 2009.
(10) For detailed information on the delimitation of zones of Members recognised as FMD free, enquiries should be addressed to the Director General of the OIE.

List of Members with an endorsed official control programme for FMD

According to Resolution No. 8 (Adapted Procedure, May 2020)

Endorsed official control programme for FMD


Members with an endorsed official control programme for FMD, according to the provisions of Chapter 8.8. of the Terrestrial CodeEdition 2019

China (People’s Rep. of)MongoliaNamibia
IndiaMoroccoThailand
Kyrgyzstan  

Suspension/reinstatement of status

Recovery of “FMD free zone where vaccination is practised” status
Colombia

Following an immediate notification received from the OIE Delegate of Colombia on an outbreak of FMD in Cesar, the “FMD free zone where vaccination is practised” status of Colombia, as recognised by the OIE World Assembly of Delegates in terms of Resolution No. 22 in May 2018 (FMD free status with containment zone), was suspended with effect from 10 August 2018.
The Delegate of Colombia submitted a dossier to the OIE Director General requesting for the recovery of its “FMD free zone where vaccination is practised” status in accordance with the relevant provisions of the OIE Terrestrial Animal Health Code (Terrestrial Code). The Scientific Commission for Animal Diseases, considered the information provided by the Delegate of Colombia and in accordance with Resolution No. 15 of the 83rd General Session “Procedures for Member Countries for the official recognition and maintenance of disease status of certain animal diseases or risk status of bovine spongiform encephalopathy and for the endorsement of national official control programmes”, the Scientific Commission concluded that the zone of Colombia fulfils the requirements of Article 8.8.7. of the Terrestrial Code to regain its previous “FMD free zone where vaccination is practised” status (adopted by the OIE World Assembly of Delegates through Resolution No. 22 in May 2017) with effect from 05 February 2020.