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On this section you will find a some articles that summarize a selection of peer reviewed papers published about PRRS
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Prevalence
PRRS prevalence is variable across different countries and even within some countries. Here are some publications that have estimated the presence of the disease in different countries and regions.
- Porcine reproductive and respiratory syndrome virus (PRRSV) in GB pig herds: farm characteristics associated with heterogeneity in seroprevalence
- Selected Swine Viral Pathogens in Indoor Pigs in Spain. Seroprevalence and Farm-Level Characteristics
- Infectious agents associated with respiratory diseases in 125 farrow-to-finish pig herds: A cross-sectional study
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Clinical Signs And Symptoms
Since the beginning the clinical appearance of the disease has two main components: reproductive and respiratory signs. Here you find a case definition of PRRS
- Endemic porcine reproductive and respiratory syndrome virus infection of nursery pigs in two swine herds without current reproductive failure
- Comparison of the Pathogenicity of Two US Porcine Reproductive and Respiratory Syndrome Virus Isolates with that of the Lelystad Virus
- Porcine reproductive and respiratory síndrome. (A review)
- Laboratory investigation of PRRS virus infection in three swine herds
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Economic Impact
The impact of PRRS is not easily estimated however some good estimations have been made and will be summarized here
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Interaction With Other Pathogens
PRRSV is not alone in pig farms, it coexists with a wide variety of pathogens mainly other viruses and bacteria. The most clinically relevant ones have been shown to interact with PRRSV.
- Effect of Porcine Reproductive and Respiratory Syndrome Virus Infection on the Clearance of Haemophilus parasuis by Porcine Alveolar Macrophages
- Mycoplasma hyopneumoniae potentiation of Porcine Reproductive and Respiratory Syndrome Virus-Induced Pneumonia.
- Increased Production of Proinflammatory Cytokines following Infection with Porcine Reproductive and Respiratory Syndrome Virus and Mycoplasma hyopneumoniae.
- Experimental inoculation of conventional pigs with porcine reproductive and respiratory syndrome virus and porcine circovirus 2.
- The effect of infection order of porcine circovirus type 2 and porcine reproductive and respiratory syndrome virus on dually infected swine alveolar macrophages
- Porcine reproductive and respiratory syndrome virus-induced immunosuppression exacerbates the inflammatory response to porcine respiratory coronavirus in pigs
- Selected Swine Viral Pathogens in Indoor Pigs in Spain. Seroprevalence and Farm-Level Characteristics
- Infectious agents associated with respiratory diseases in 125 farrow-to-finish pig herds: A cross-sectional study
- PRRSV type 1 can induce aggravation of infection with a mild virulent Actinobacillus serotype 2 strain
- Dual infections of feeder pigs with porcine reproductive and respiratory syndrome virus followed by porcine respiratory coronavirus or swine influenza virus: a clinical and virological study
- Pathogenesis of porcine reproductive and respiratory syndrome virus-induced increase in susceptibility to Streptococcus suis infection.
- Concurrent respiratory infections in 221 cases of PRRS virus pneumonia: 1992-1994
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Biosecurity
PRRSV can be transmitted through a variety of different ways, therefore direct or indirect contact between the source of the virus and the susceptible pigs has to be minimized to avoid contamination.
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Diagnostic
Since the appearance of PRRSV, several techniques have been used to detect it on the farm; some of them aim to detect the virus (or parts of it) and others are looking for the presence of antibodies against the virus.
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