The confirmation of a first case of African swine fever The discovery of African swine fever (ASF) in a wild boar within the city limits of Barcelona has set off alarm bells in Catalonia. The finding of the infected animal on the Collserola hillside closest to the city has led the Catalan government to take a step it had previously tried to avoid: completely close the Collserola Natural Park to recreational access.
Authorities emphasize that the decision is not in response to a specific incident, but rather to the evolution of an outbreak that has been dragging on since November and which has already forced several expansions of the risk perimeter. With Barcelona now included on the PPA map, 18 municipalities are affected and more than two hundred wild boars have been detected with the virus in the province.
First case in Barcelona and a shift in containment strategy
El infected wild boar It has been located in the area of the Collserola mountain range within the municipality of Barcelona, very close to the border with Sant Just Desvernwhere positive cases had already been confirmed in previous days. Tests have confirmed that This is not a new focusbut from the same chain of infections that originated in Vallès and that in recent weeks has been moving south.
El Minister of Agriculture, Livestock, Fisheries and Food, Òscar OrdeigHe explained that the administrative leap to the Barcelona terminus implies “a change of scale in the containment strategyUntil now, the majority of cases were concentrated in the environment of Cerdanyola del Vallès and Bellaterra, considered ground zero since the first two wild boars found dead with African swine fever (ASF) appeared near the campus of the Autonomous University of Barcelona in November.
Ordeig has reported that the new positive case will be included in the official count that must be validated by the Department of agricultureThis will increase the total number of infected animals. According to the latest data provided by the Generalitat, the number has already exceeded [number missing]. 216-220 confirmed cases, and other sources within the Department itself raise the figure above the 227 positive wild boars, with 11 new cases in the last week in the high-risk area alone.
For the Catalan government, the fact that the virus has formally entered the Catalan capital is not a complete surprise, but it is a inflection pointThe regional minister himself acknowledged in parliament that this scenario was "to be expected" since, just over a month ago, the disease broke through the initial perimeter around Bellaterra and began to be detected south of Barcelona, especially in the Baix Llobregat.
Collserola total closure: what will it be like and who will be affected
So far, the Collserola Natural Park It was already subject to partial restrictions: nighttime access had been limited and several access points from the north and from the riverbanks had been closed. Llobregat and BesòsWith the inclusion of the Barcelona case, the Generalitat takes another step and It shields the entire massif as a single block., also closing the southern slope, the one that connects directly to the city.
The new resolution stipulates that the The closure will be effective from this Thursday. and that the restrictions are in place The 24 hours of the daywithout a defined end date. It will be prohibited recreational and sporting activity In the natural environment: it will not be possible to go running on forest tracks, take bicycle routes on interior paths, walk dogs in the forest or use picnic areas or parking lots for access to the mountain.
Spaces as popular as the Les Aigües RoadThis area, very popular with runners and cyclists in Barcelona, will be directly affected by these restrictions. In practice, users will not be able to venture beyond the shoulders of the main roads, and secondary access points to paths and trails will be closed off or monitored.
Minister Òscar Ordeig and the General Secretary of Agriculture, Cristina MassotThey insisted that the closure was decided “based on technical criteria” and with the aim of facilitate the wild boar captures without human interference. They explain that the continuous presence of people in the mountains hinders monitoring efforts because the animals become frightened and they tend to dispersepotentially spreading the virus to other areas.
At the same time, the third deputy mayor of Barcelona, Albert BatlleHe has asked for understanding and admitted that the impact on the public is “very significant.” It is estimated that the park receives around 5 million visits per yearwith an average daily attendance of around 5.000 people on weekdays and peaks of 10.000 to 15.000 users on weekendsDespite this, the authorities insist that they have acted "diligently" since the beginning of the incident.
What you can and can't do: neighbors, businesses and transport
The restrictions, as repeatedly emphasized by the Generalitat and the City Council, are focused on the access to the natural environmentnot in the daily lives of the people who live or work in the area. In total, approximately 15.000 people reside in neighborhoods and housing developments included within or very close to the Collserola park, in areas such as Vallvidrera, Les Planes or Tibidabo.
For this group, the following is guaranteed: access to housing, facilities and businesses, as well as the regular use of public transportSports facilities, restaurants, educational centers and other services located in the area may continue to be used, provided that they do not involve venturing into the woods beyond the authorized roads.
Minister Ordeig wanted to launch a message of calm to the residents and those who work in the Collserola area: “People will be able to go to businesses, facilities, and public transport stops.” At the same time, he announced that, in coordination with the affected municipalities and local police forces, they will They will define in detail the permitted access points. and a specific information campaign will be launched.
The Catalan government also insists that it is not a matter of “closing the park forever”, but of temporarily reinforce containment at a crucial moment. However, there is no clear reopening timeline: lifting restrictions will depend on how the outbreak evolves and whether any new positive cases appear in the area for an extended period.
Meanwhile, the Catalan government is asking residents in the affected areas to adopt a basic “disinfection routine”Clean footwear, and where possible, bicycle and vehicle wheels, after traveling through high-risk areas. A specific campaign to explain these procedures in a simple way.
18 municipalities in high-risk areas and experiencing outbreak expansion
With the addition of Barcelona, the high-risk perimeter African swine fever around Collserola already includes 18 municipalitiesSome of them have confirmed cases in wild boars and others are part of the preventative zone where the same restrictions on access to the natural environment apply.
Among the municipalities with confirmed positives and which form part of the core of the outbreak include: Barcelona, Cerdanyola del Vallès, Sant Cugat del Vallès, Sant Quirze del Vallès, Terrassa, Rubí, Molins de Rei, Sant Feliu de Llobregat, Sant Just Desvern and Esplugues de LlobregatIn total, there are now nine or ten locations (according to the updated count) where infected wild boars have been found since November.
This group is joined by other municipalities included in the high risk area and subject to the same limitations on access to the forest: Badia del Vallès, Barberà del Vallès, Montcada i Reixac, Polinyà, Ripollet, Sabadell, Santa Perpètua de Mogoda y The PapiolIn these localities, a belt is compressed that covers a large part of the Vallès Occidental, Baix Llobregat and Barcelonès around Collserola.
In all these municipalities it remains It is forbidden to enter the natural environment For usual leisure activities: walks on forest paths, sports routes, walks with dogs off-leash in the woods, or use of recreational areas will be prohibited while the outbreak remains active. However, the possibility of access to housing, businesses and economic activities in enclosed spacesas well as restaurants and sports facilities located in urban centers or next to main roads.
For the first few months, the virus remained contained in a radius of six kilometers around Bellaterra, where the first two wild boars were located. Later, a second ring road of 20 kilometers, in which expansion is monitored. The leap to Molins de Rei in mid-February and, shortly afterwards, to Sant Feliu de Llobregat and Sant Just Desvern They forced the expansion of the perimeter until the current map of 18 monitored municipalities was configured.
Origin of the outbreak and measures to reduce the wild boar population
Today, The exact origin of the ASF outbreak in Catalonia remains unclearDuring the first few weeks, some of the suspicions were directed towards the IRTA-CReSA of BellaterraA specialized laboratory has samples of this virus for research. However, a genetic sequencing report prepared by the Ministry of Agriculture has ruled out this option, concluding that the variant detected in wild boars does not match the stored samples in the middle.
The hypothesis that is gaining the most traction among state authorities points to the entry of contaminated meat products from other countries European countries where African swine fever is endemic or has been circulating for years among wildlife and farms. Pieces of meat, sausages, or poorly managed food scraps could have ended up in areas accessible to wild boars, facilitating transmission.
In parallel with the investigation into the origin, the Catalan government has decided to intensify what it considers its main tool of control: the drastic reduction in the wild boar population in the affected area. In Catalonia, it is estimated that there are between 125.000 and 180.000 wild boars, a figure that the Generalitat itself considers excessive due to the road safety problems, agricultural damage and urban conflicts that were already being generated before the outbreak of ASF.
Authorities have announced that measures will be maintained and reinforced. capture devices in Collserola and its surrounding area, with the aim of substantially reducing the number of animals. As Minister Ordeig explained, funds have already been allocated more than 40 million euros to these control operations and even contemplates the elimination of all wild boar colonies within the area most directly affected before the summer.
Among the measures on the table is also the possibility of extend the wild boar hunting seasonwhich normally ends in late March. The idea is to have more time to act and rely on hunters and rural agents, although the livestock sector is also demanding reinforcements of military or Civil Guard personnel to accelerate and better coordinate the beats and controls.
Impact on the pig sector and economic risk in Spain
Although the African swine fever poses no danger to human healthThe virus is highly lethal to domestic pigs, and there is no effective commercial vaccine. When African swine fever (ASF) enters farms, it necessitates... mass animal sacrifices and entails the imposition of export bans of meat and pork products by numerous countries.
For now, the authorities insist that No pig farms are affected in Catalonia, and all detected cases involve wild boar in the wild. This separation between wildlife and livestock is the barrier that is being protected at all costs. However, the sector is experiencing the situation with a mixture of concern and growing alarm.
Catalonia concentrates a a very significant part of the Spanish pig population and it is one of the pillars of the country's agri-food sector. Between livestock production and the associated meat industry, pork contributes to Spanish GDP between 25.000 and 30.000 billion eurosFor organizations in the sector, a scenario in which the virus reaches farms could translate into losses of up to 6.000 millones de euros If production had to be reduced by around 20%, as already happened in Germany after the arrival of ASF.
The director of the National Association of Swine Livestock (Anprogapor), Miguel Ángel Higuera, has gone from describing the situation as worrying to considering it outright “critical”. According to what he has denounced, “There has been a lack of decisiveness in tackling the problem"And if the spread is not stopped now, the country risks being forced into a 'German model' of living with the disease and a forced reduction of the livestock population."
The pork sector has been demanding tougher measures for months, such as complete emptying of wild boars and, if necessary, from farm pigs in the 20 kilometer radius of the first outbreaks detected in Cerdanyola del Vallès. It also calls for increased human resources dedicated to monitoring and surveillance, involving security forces in addition to rural agents and natural park staff.
A health crisis in a highly complex urban environment
The management of African swine fever in Collserola has a particularity that differentiates it from other ASF outbreaks in Europe: it is taking place in a natural space surrounded by highly urbanized areasThe massif borders Barcelona and several densely populated municipalities, dotted with residential neighborhoods, industrial parks, businesses, facilities and busy roads.
This context makes it so that “to completely “shield” the territory is practically impossibleAs the government itself acknowledges, the park has the Mediterranean Sea as a natural barrier on its southern flank. However, the numerous formal and informal access points from the urban area make the strict application of perimeter closures and access controls a challenge.
The administrations involved —Generalitat, city councils and park consortium— have maintained in recent days coordination meetings To reinforce the presence of security forces, specify which access points will be blocked and how regular users will be informed. A plan is also being prepared mass communication campaign so that the population understands what can and cannot be done in each municipality.
In addition to all this, there is the need to reconciling virus containment with the economic and social activity that depends, directly or indirectly, on Collserola. Leisure parks such as the TibidaboEducational centers, local businesses, and training activities will continue to operate. The challenge lies in maintaining this relative normality while... reduces contact between people and wild boars in the forest environment and risky behaviors, such as feeding animals or leaving food scraps, are avoided.
What does seem clear among administrations, experts and the livestock sector is that the current phase will be decisive: the effectiveness of restrictions and mass captures The coming weeks will largely determine whether the outbreak remains confined to the Collserola belt or whether it ends up spreading to farms, with much more serious consequences for the economy and the country as a whole.
With the Total closure of Collserola, the declaration of 18 municipalities as a high-risk zone and more than 220 infected wild boars In just a few months, Catalonia faces one of the most delicate health episodes in recent decades in the livestock sector; the combination of a virus that does not affect people but does threaten a key sector, an intensely frequented natural park and an oversized wildlife population requires the deployment of an unprecedented surveillance, slaughter and control system, in which citizen collaboration and speed of action can make the difference between containing ASF in the mountains or assuming a much greater impact on Spanish pig production.
