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Spanish authorities investigating the recent ASF incident in the northeastern region are now considering the possibility that the virus could have escaped from a scientific laboratory. Attention has narrowed to five local facilities as possible sources.

Confirmed Cases and Industry Stakes

Thirteen infections of the fever have been confirmed in feral pigs in the countryside outside Barcelona beginning on 28 November. This has prompted Spain – the European Union's largest exporter of pig products – to rush to contain the outbreak before it becomes a significant threat to the nation's multi-billion euro pig meat export sector.

Evolving Theories of Origin

Initially, regional authorities suspected the disease may have begun after a boar ate contaminated food imported from outside Spain – perhaps a discarded meat sandwich from a haulier.

However, the Spanish agriculture ministry has initiated a new investigation after determining that the variant of the virus found in the dead animals in the region is different from the one known to be circulating in other EU member states. According to a report indicate the strain in question is rather similar to one found in Georgia in 2007.

"The discovery of a strain similar to the one that circulated in Georgia does not, therefore, rule out the chance that its origin lies in a biological containment laboratory," said the agriculture department.

Laboratory Connection Examined

The 'Georgia-2007' virus strain is a 'reference' virus frequently employed in experimental infections in containment facilities to research the virus or to evaluate the efficacy of vaccines, which are currently being developed. The report suggests that the virus may not have originated in livestock or animal products from any of the countries where the infection is currently active.

Official Actions and Review

In response, Salvador Illa announced he had ordered the Catalan agrifood research institute to conduct an inspection of five laboratories that handle the ASF pathogen within a 20-kilometer distance of the affected area.

"We isn’t ruling out any possibilities when it comes to the origin of the outbreak of African swine fever, but neither is it confirming any," he said. "Every theory are on the table. Above all, we need to know what happened."

Latest Control Measures

The authorities have confirmed thirteen infections of the virus – each one in dead wild boar found within six kilometers of the initial focus. Officials added the corpses of an additional 37 animals discovered in the area have been tested, with every one testing negative for the virus. Experts sent to the 39 swine operations within the surrounding zone have found no sign of the disease there. Over one hundred personnel from the country's military emergencies unit have additionally been sent to the area to work alongside law enforcement and wildlife rangers.

Global Background of ASF

Long endemic to Africa, ASF is harmless to humans but often deadly to swine. In 2018, the disease turned up in China, which is home to about 50% of the global pigs. By the following year, there were concerns that as many as 100 million animals had been lost. Two years later, the pathogen was detected to be in the Federal Republic of Germany, home to one of the European Union's largest pig farming industries.

The Country's Pivotal Position in Pork Exports

Spain, which is the European Union's biggest pork producer, exported pig meat products worth €5.1bn to other EU countries in the previous year, and nearly 3.7 billion euros of pig-based goods to destinations outside the bloc. National data show that the country processed fifty-eight million swine in 2021 – an increase of 40% from a ten years prior.