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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.
The International Pig Veterinary Society (IPVS) will support the 333 Experience Congress, which will be held for the first time in Brazil. The online event will be on November 18th – 19th, 2021.
The program will include nine different panels. On November 19th, from 10 am to 12 pm IPVS2022 will be sharing highly relevant information on African Swine Fever (ASF) in a panel entitled A Global overview of the African Swine Fever, which will be chaired by Fernanda Almeida, and Lia...
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Liz Wagstrom (National Pork Producers Council) talked about surveillance and sample collection, in this Swine It interview with host Laura Greiner....
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Introduction The African swine fever (ASF) virus (ASFV) is deadly to pigs but harmless to humans [1]. ASF is one of the most severe viral diseases affecting pigs worldwide [2-5]. It is considered a “notifiable disease” by the Office International des Epizooties (International Office of Epizootics [OIE] of the World Health Organization because of its high mortality rate of up to 100% [6-8]. ASF causes acute hemorrhagic fever in domestic pigs and often results in...
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Introduction Although African swine fever (ASF) was first described almost a century ago, controlling the disease has proven to be a challenge, in particular because no vaccine or treatment are available. Spread of ASF can only be prevented by early detection and the application of strict compliance of classical disease control methods, including surveillance, epidemiological investigation, tracing of pigs, stamping out in infected holdings, strict...
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1- INTRODUCTION In 2014, it was first reported that pigs could become infected with porcine epidemic diarrhoea virus (PEDV) following consumption of contaminated feed via natural feeding behaviour (Dee et al., 2014). Since that time, similar observations have been reported for Seneca virus A (SVA), porcine reproductive and respiratory syndrome virus (PRRSV) and African swine fever virus (ASFV) (Dee et al., 2020a; Niederwerder et al., 2019,). These and other studies have...
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1. Introduction Classical swine fever (CSF) is one of the most important infectious viral disease of domestic pigs and wild boars, caused by the classical swine fever virus (CSFV), which belongs to the species Pestivirus C, is an enveloped RNA virus belonging to the growing genus Pestivirus, within the family Flaviviridae [1–3]. CSFV strains can be divided into three genotypes, with three to four sub-genotypes [4]. In the American continent, the circulating viruses belong...
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Selecting the Correct Methionine Source – A Key Index for Successful Pig Production
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In 2022, hog production will decline by 5 percent due to low inventories and a smaller sow herd, which resulted from significant slaughter and delayed restocking in 2021. In 2022, government policies will disincentivize small- and medium-scale operations...
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FAO alerted countries to take preventive measures in light of the recent detection of the first case of African swine fever in the Americas, discovered in domestic pigs in the Dominican Republic, on July 28, 2021.
The Food and Agriculture Organization of the United Nations stated that African swine fever does not represent any risk to human health, neither through direct contact with infected animals, nor through the consumption of any animal product.
The disease is now found...
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Introduction As African swine fever virus (ASFV) continues to spread across Southeast Asia, classical swine fever virus (CSFV) expands within Japan, and foot and mouth disease virus (FMDV) reports continue from China, there is increased concern that foreign animal disease (FAD) may enter previously naïve areas. Their continued entry would be devastating to the global swine industry, but also to those that produce feed and ingredients fed to pigs. In...
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Dr. LIM Hang Chern, Head of Business Development of Rhone MA Holdings Berhad, Malaysia, presents the book: Swine Diseases in Asia, by Dr. Henry HL. TOO. In this publication, Dr. Margarita Trujano participated in writing the chapter "Health problems in pigs related to mycotoxins"....
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The effect of live yeast on colibacillosis in field conditions (France)
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1. Introduction Classical swine fever (CSF) remains a highly relevant disease in swine, causing major losses to the industry which are related to various forms of disease [1]. CSF has been eradicated in the US and Western Europe and remains endemic in several countries, including Asia, Central and South America, and Eastern Europe, with a recent outbreak being reported in Japan [2]. The disease is caused by the CSF virus (CSFV), a positive stranded RNA virus that belongs to the...
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1 | PART 1: WHAT DO WE KNOW?
1.1 | Introduction
Effective biosecurity protocols are essential towards protecting the health status of swine farms. In the United States, tremendous resources have been invested to reduce the risk of viral pathogens, such as the entry of porcine reproductive and respiratory syndrome virus into susceptible populations. Protocols including shower in-shower out, transport...
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April 27, 2021 —
Media reports of African swine fever virus (ASFV) variants emerging in China and a recent China Harbin Laboratory paper describing its analysis of ASFV variants prompted the Swine Health Information Center (SHIC) to dig into the topic with ASF expert Dan Rock of the University of Illinois. [Source: ...
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These new ASF guidelines seek to assist OIE Members and stakeholders in the pig industry in the practical implementation of compartmentalisation specific to the disease in line with the related chapters of the Terrestrial...
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1. Introduction The first set of cases of African swine fever (ASF) in Latvia were detected in the wild boar population at the eastern border with Belarus in June 2014 [1–3]. The disease continued to spread over most of the territory of Latvia within the following years [4–6]. Similar to other ASF affected countries, the infection cycle is maintained by wild boar and this remains a permanent threat for the domestic pig industry [1,7,8]. In parallel, to the epidemic...
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Selecting the Correct Methionine Source – A Key Index for Successful Pig Production
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1. Introduction African swine fever (ASF) is a viral disease of domestic and wild suids currently threatening the global porcine industry [1,2]. Considered a notifiable disease to the World Organization for Animal Health (OIE), it has advanced remarkably in Africa, Europe, and Asia in recent years [3]. ASF is caused by an icosahedral, double-stranded DNA virus, the only member of the family Asfarviridae and the genus Asfivirus [4]. The current spread of African swine fever...
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1. Introduction African swine fever virus (ASFV) is the only member of the virus family Asfarviridae, and is the etiological agent that causes African swine fever (ASF). This large double-stranded DNA virus has more than 150 open reading frames (ORFs) that are encoded in the 180–190 kilobase genome. ASF disease can range from sub-clinical to lethal depending both on the specific host that is infected and the specific strain of virus [1]. Several sub-Saharan African...
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A new issue of e-newsletter is now available.
1--- CPV 2020 edition 2--- Noval anti-coccidial drug is approved 3--- Florfenicol, Tilmicosin,vitamin market review 4--- ASF issue
New Regulation & Publication
CVP-2020 Edition Approved
On Oct.29, the draft of Chinese Veterinary Pharmacopoeia (2020 Edition) was reviewed and approved. It marks the completion of the compilation of a new edition of Chinese...
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In a recent panel with Farm Journal, three experts shared their insights on African Swine Fever and the lessons learned from the effects of the ongoing COVID-19 pandemic.
Gordon Spronk (President of Pipestone Veterinary Services) mentioned that “ASF continues to spread across the globe. It was a threat when it was found in the world’s largest swine population in China and continues to be a threat now.”
Spronk added: “Our vision is to keep it out of our...
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