What Is 2007 UK Foot and Mouth Outbreak

Overview

The 2007 UK foot and mouth disease (FMD) outbreak marked a significant animal health crisis during summer 2007. It was the first major outbreak in the UK since the devastating 2001 epidemic, which had cost the economy over £8 billion and led to the culling of millions of livestock.

Unlike in 2001, the 2007 incident was limited in scale but raised serious concerns about biosecurity at research facilities. The outbreak originated near the Pirbright campus, home to both the Institute for Animal Health and a vaccine production plant operated by Merial.

• First case confirmed: On August 3, 2007, a cow on a farm near Guildford tested positive for foot and mouth disease, triggering immediate containment protocols.
• Source identified: Genetic analysis linked the virus strain to type O1 BFS 1860, used at the Pirbright research facility, suggesting a lab or wastewater leak.
• Second outbreak: A second case emerged on August 13, 2007, in Egham, 16 miles from the first, likely due to human or vehicle movement.
• Containment measures: The government imposed a nationwide ban on livestock movement and established a 3-kilometer protection zone and a 10-kilometer surveillance zone.
• Animal culling: A total of over 1,500 animals were culled across affected farms to prevent further spread, though the total remained far below 2001 levels.

How It Works

Understanding the 2007 outbreak requires knowledge of how foot and mouth disease spreads, how it's detected, and how authorities respond. The virus is highly contagious among cloven-hoofed animals and spreads through direct contact, aerosols, or contaminated materials.

• Transmission route: The virus spreads via aerosols, contaminated vehicles, or personnel, with infected animals shedding the virus before showing symptoms, complicating early detection.
• Incubation period: Symptoms appear within 2 to 14 days, including fever, blisters on the mouth and feet, and reduced milk yield in dairy cattle.
• Diagnosis method: The disease is confirmed through laboratory PCR testing of blood or epithelial samples, with results typically available within 24 hours.
• Biosecurity failure: The outbreak was likely caused by inadequate wastewater management at the Pirbright site, allowing contaminated water to escape into the environment.
• Government response: The Department for Environment, Food and Rural Affairs (DEFRA) activated emergency protocols, including immediate livestock movement bans and farm inspections.
• Vaccination policy: The UK maintained a "no routine vaccination" policy to preserve export eligibility, relying instead on culling and containment.

Comparison at a Glance

Comparing the 2007 outbreak with the 2001 epidemic highlights differences in scale, response, and impact.

The 2007 incident was contained rapidly due to improved surveillance and faster response systems developed after 2001. However, it exposed ongoing vulnerabilities in high-containment research facilities and prompted a review of biosafety standards.

Why It Matters

The 2007 outbreak had lasting implications for agricultural policy, biosecurity, and public trust in scientific institutions. While limited in spread, it served as a wake-up call for stricter oversight of pathogen handling.

• Policy changes: DEFRA introduced stricter wastewater and waste disposal rules for facilities handling FMD virus.
• Research oversight: The Health and Safety Executive launched an investigation into biosecurity lapses at Pirbright.
• Public concern: The incident fueled criticism over co-location of research and vaccine production on shared sites.
• Trade impact: The UK temporarily lost its FMD-free status, halting live animal exports until December 2007.
• Scientific accountability: Merial and the Institute for Animal Health faced scrutiny, leading to management reforms.
• Preparedness: The event validated emergency response systems but highlighted the need for continuous vigilance.

Ultimately, the 2007 foot and mouth outbreak underscored the delicate balance between scientific advancement and public safety, reinforcing the need for robust containment protocols in high-risk biological research.