On this section you will find a some articles that summarize a selection of peer reviewed papers published about PRRS
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
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
Economic Impact
The impact of PRRS is not easily estimated however some good estimations have been made and will be summarized here
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
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.
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.
