The new methods, published in Applied and Environmental Microbiology, use a simple swabbing technique to gather samples from the environment which FMD-susceptible animals such as cattle, sheep and pigs commonly make contact with, such as water troughs.
Researchers say the technique requires very little expertise, which makes the sampling method far more accessible, allowing a higher frequency of samples to be collected and processed during an outbreak.
FMD virus is able to survive long periods of time in the environment in the right conditions (up to three months depending on environmental factors such as pH, temperature and relative humidity), so sampling areas where infected animals may have shed virus allows scientists to detect the presence of FMD even if the animals on the farm are no longer showing clinical signs.
The researchers say that novel surveillance techniques such as this can help support a robust response to outbreaks in FMD-free countries, and can also be implemented in endemic areas, such as parts of Asia, Africa and the Middle East, as part of surveillance programs to supplement current information about the spread of FMD.
Dr Claire Colenutt, who led the research at Pirbright said: "Current surveillance methods rely on the recognition of FMD infection in susceptible animals in addition to the collection of samples from the animals which requires veterinary expertise. In keeping the approach simple, samples can be taken by individuals without prior expertise, increasing the number of potential samples, and relieving pressure on veterinary services."
Photo: FMD. Dr. D. Denev
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