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Swine fever
African swine fever virus (ASFV) is a large, double-stranded DNA virus in the Asfarviridae family. It is the causative agent of African swine fever (ASF). The virus causes a hemorrhagic fever with high mortality rates in domestic pigs; some isolates can cause death of animals as quickly as a week after infection. It persistently infects its natural hosts, warthogs, bushpigs, and soft ticks of the genus Ornithodoros, which likely act as a vector, with no disease signs. It does not cause disease in humans. ASFV is endemic to sub-Saharan Africa and exists in the wild through a cycle of infection between ticks and wild pigs, bushpigs, and warthogs. The disease was first described after European settlers brought pigs into areas endemic with ASFV, and as such, is an example of an emerging infectious disease.
ASFV replicates in the cytoplasm of infected cells. It is the only virus with a double-stranded DNA genome known to be transmitted by arthropods.
Introduction: African swine fever (ASF) disease was eradicated from domestic swine herds in Brazil in 1984, after six years of hard work, determination and with highly cost due to the occurrence in pig small farms. The ASF virus (ASFV) belongs to the family Asfarviridae being the only member of Asfivirus genus. Our previous studies on ASFV epizootiology and virulence demonstrated that virus has dispersed from the first ASF outbreak in pig herds in Paracambi city of state...
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Erik Visser (Hamlet Protein) shares his opinion on the decline of feed costs and how the industry should think forward to solve labor issues, in this Engormix interview during IPPE 2024 in Atlanta, USA....
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John Carr (Apiam Animal Health/James Cook University) talks about perimeter fences and the minimal biosecurity requirements, during this Swine It interview with host Laura Greiner....
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Jeff Zimmerman (Iowa State University) discussed area density, models and prevention of diseases, during this Swine It interview with host Laura Greiner....
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Mitigating the negative impact of Lawsonia intracellularis on pig performance and intestinal wellbeing
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Lisa Becton (National Pork Board) comments on the inspection of feed and different areas of risk, during this Swine It interview with host Laura Greiner....
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Introduction The link between diet and disease transmission has raised concerns that U.S. herds could become infected with foreign pathogens through contaminated feed and feed ingredients originating from countries with endemic disease and lax sanitation and quality assurance procedures. Experimental data has already demonstrated that some feed ingredients, particularly soy-based products, can support the viability of at least three significant viral pathogens of swine (i.e.,...
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Introduction: Classical swine fever (CSF) is a highly contagious disease that needs to be confirmed by laboratory diagnosis due to highly variable, often unspecific clinical symptoms. Extensive serological investigations in the context of surveillance programs are required to demonstrate freedom from infection. In the European Union, a strict ‘stamping-out’ strategy is applied in case of a CSF outbreak. Given ethical and socio-economic concerns, application of...
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John Carr (Apiam Animal Health, Australia) talked about the specific clinical signs of an ASF variant, during IPVS2022 in Rio de Janeiro, Brazil....
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Artur Summerfield (University of Bern) comments on new development techniques and the fight against African Swine Fever and PRRS, among other diseases, during IPVS2022 in Rio de Janeiro, Brazil....
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Kobe Lannoo, Global Category Manager at Agrimprove, speaks about the results of a proven study and product to mitigate African Swine Fever virus (ASFv) in the feed....
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1. Introduction Classical swine fever (CSF), a list-A disease classified by the World Organization for Animal Health (OIE), is considered as a transboundary animal disease by the Food and Agriculture Organization of the United Nations (FAO) [1]. The disease causes high morbidity and mortality in both feral and domestic pigs and can result in significant economic losses to the swine industry worldwide [2]. Currently, it is present in many countries in Asia, the Caribbean islands,...
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The dissemination of ASF and the challenges involved in containing its damage were the topics of discussion during the IPVS’ Panel presented online at the 333 Experience Congress, held on November 19th, which brought together...
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A Natural Choice for Growth Enhancement in Farm Animals - 3 ESSDENDIS
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Introduction African swine fever (ASF) is one of the most complex infectious swine diseases. Its notification to the World Organization for Animal Health (OIE) is mandatory due to the high mortality it causes, its efficient transmission rate and the great sanitary and socioeconomic impact that it produces on international trade of pigs and pork products. The African swine fever virus (ASFV) is a large, enveloped double-stranded DNA virus, which is the only...
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Introduction African Swine Fever (ASF) is a devastating highly contagious disease affecting suids. It is caused by a big complex virus, the African swine fever virus (ASFV), that can spread very rapidly within the pig populations by direct or indirect contact. This virus can also become endemic in feral or wild suids, and the transmission cycles existing between these animals and the Ornithodorus spp. ticks, the biological vector, complicate control and...
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Mitigating the negative impact of Lawsonia intracellularis on pig performance and intestinal wellbeing
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Prof. Dr. JM. José Sánchez-Vizcaíno, Universidad Complutense Madrid, in a webinar regarding the unstoppable spread of the African Swine Fever Virus on a global scale....
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Introduction Although only two years have passed since the last IPVS congress in Chongqing (China), the global swine industry has been completely transformed by the emerged threat of African swine fever (ASF). The introduction of ASF to South East Asia, especially to China, has altered perceptions of ASF. On one hand, the massive scale of the outbreak in the People Republic of China (PRC) has given the perception that the situation in many countries is not...
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The disease African swine fever (ASF) is one of the most important infectious disease of swine. This disease causes greater sanitary, social and economic impacts due to its high mortality rate in domestic pigs and restrictions on the pig and pork trade. It is not a zoonotic disease, which limits its impact on public health. ASF must be notified to the World Organization of Animal Health (OIE). There is not a commercial vaccine or treatment against ASF at...
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Introduction African swine fever virus (ASFV) reported as deadly for pigs. It is listed as a “notifiable disease” by the OIE due to high illness rates and a high mortality rate, up to 100%, and substantial financial losses [1-3]. Further spread of ASF to China has had disastrous consequences, especially instead of the fact that China contains more than half of the world’s pig population [4]. To date, as far as Vietnam is concerned, ASF has appeared in all 63...
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Evidence suggests African swine fever virus (ASFV) may survive under conditions similar to those observed in transoceanic transport models. In a Swine Health Information Center (SHIC)-funded study, researchers developed a quantitative risk assessment model to estimate the probability that one or more corn or soybean meal ocean vessels contaminated with ASFV would be imported into the US annually. Ultimately, this model can be used to evaluate risk mitigation strategies and critical control...
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The International Pig Veterinary Society (IPVS) Congress, the largest technical and scientific global event dedicated to the pig industry will take place in the city of Rio de Janeiro on June 21st – 24th, 2022 for the second time after 32 years. It will offer participants a rich scientific program designed to address the main global challenges facing the pig industry.
The main topic of discussion will be New Perspectives for the Pig Industry: biosecurity, productivity, and...
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