An overview of North American PRRS eradication efforts
The use of diagnostics will allow producers and practitioners to work together towards the common goal of PRRS eradication
Articles - Pig health
Immunology against PCV2: What difference is there between a subclinically affected animal and an animal with porcine circovirus?
Pigs that are not affected by the disease tend to have a quantity of sero-neutralizing (and also total) antibodies against PCV2, which is significantly greater than those that cause disease
PRRS Eradication
Preventing vertical and horizontal spread of PRRSV from dam to offspring is critical for the production of naive replacement stock
Diagnosis of porcine circovirus: individual and farm criteria
The aim of this article is to discuss those differentiating topics which are relevant from a practical point of view and which in some way elude the disease's definition.
PRRS Biosecurity
Trailers contaminated with PRRSV can serve as a source of infection for naïve pigs. Therefore, sanitation for livestock trailers and transport vehicles is considered a high priority when it comes to biosecurity practices.
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ArticleClinical signs and autopsy findings: can porcine circovirus be diagnosed on the farm?
The autopsy is always an important diagnostic element for the majority of diseases, and this is the same for porcine circovirosis.
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ArticlePRRS control
The presence of subpopulations of exposed and non-exposed sows in chronically PRRSV-infected breeding herds assists in the maintenance of virus circulation in the breeding herd over time.
Epidemiology and transmission of PCV2 and of porcine circovirus
It is assumed that the most probable route of PCV2 transmission is the oronasal tract, which would indicate that horizontal transmission (sow-piglet or piglet-piglet) is a frequent or very frequent occurence
PRRS: Diagnostic testing methods
This article will focus on selected antigen and antibody detection methods based on their application by practicing veterinarians to field cases in the US.
PRRS: Transmission via indirect routes (2/2)
Migratory waterfowl have been proposed as vectors of PRRSV spread between farms, due to their migratory nature and their tendency to nest on or near to swine farm lagoons
Etiology: porcine circovirus type 2 (PCV2)... where is "agent X"?
Porcine circovirus type 2 is a viral agent with a relatively simple structural organization of which there are two distinct genotypes (1 and 2), it is not clear if they have similar virulence. Since some years ago there has been a hypothesis developing that there exists an “agent X” that would play a role as a trigger factor of the disease in 100% of cases.
PRRS: Transmission via direct and indirect routes (1/2)
In this second part the direct routes (infected pigs and contaminated semen) and indirect routes (fomites and transportation vehicles) of PRRSV are tackled, as is the persistence of the virus because the persistence of the infection is a characteristic of PRRSV infections in pigs and plays a major role in the control and eradication of the disease.
African Swine Fever
All the information about ASF: how to recognize the disease, how it is transmitted, pictures of lesions, latest news, guides, etc.
History and controversy of disease
Joaquim Segalés, professor at the Universitat Autònoma de Barcelona and researcher at the Centre de Recerca en Sanitat Animal (CReSA) (research centre for animal health), was one of the first researchers to discover PMWS and PDNS in Spain. He will be in charge of this section where every month articles will be published on the latest themes, especially from a practical point of view. These themes will include etiology, patogenicity, epidemiology, diagnostic, treatment and prevention of porcine circovirus-associated diseases. A possible hypothesis will also be presented on the emergence of porcine circovirus on a worldwide level.
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ArticleWhat causes coughing in pigs?
Any factor that irritates or inflames the respiratory system will elicit the physiological response of either sneezing or coughing or both. Although alarming and indicative of disease, coughing is at least a sign that normal physiological responses are taking place and should not in isolation be necessarily seen as a bad thing. We may have sudden or generalized outbreaks of coughing as well as a constant coughing in pig groups. There are infectious pathogenic agents that are normally associated with coughing or laboured breathing in pigs such as Actinobacillus, Bordetella, Haemophilus, Pasteurella Streptococcus, Mycoplasma, SIV, PRRSV or PCV2.
PRRS: Etiology and clinical manifestation
Scott Dee, the prestigious American veterinarian who is known worldwide for his research on the PRRS virus, will be in charge of this section which is dedicated exclusively to the PRRS disease. Every month a new article will be published related to subjects such as etiology and clinical signs, transmission routes, diagnostic testing methods, biosecurity or control and eradication.