Page 22 of articles about prrs

Survey of pleuritis and pulmonary lesions in pigs at abattoir with a focus on the extent of the condition and herd risk factors

A total of 4889 animals, ranging in age from 9 to 10months, from 48 batches of pigs belonging to an equal number of herds, were included in the study.

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The Epidemiology of PRRS in England: current control measures are not effective

According to the results of the thesis presented to The Royal Veterinary College, University of London: "The Epidemiology of Porcine Reproductive and Respiratory Syndrome (PRRS) in England: and evaluation of surveillance using scenario tree analysis", current control measures are not effective and that surveillance needs enhancement.

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Western Canada PRRS-free herd certification expanded to Ontario and Quebec

A pilot project designed to allow pork producers in Western Canada to certify that their herds are free of PRRS has been expanded to include Ontario and Quebec.

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A one-night downtime period prevents the spread of PRRS and Mycoplasma hyopneumoniae by personnel and fomites

This paper summarizes observations recorded over a 4-year period regarding the ability of a 1-night period of downtime to prevent mechanical spread of PRRS and Mycoplasma hyopneumoniae between pig populations by personnel and fomites.

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Microbiological identification and analysis of swine tonsils collected from carcasses at slaughter

The primary objective of this 7-month study was to determine the prevalence of porcine pathogens of the tonsil of the soft palate, principle tonsil of the pig, of swine at slaughter.

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The impact of air filtration on PRRS control in 7 breeding herds from a commercial system of swine production

The filtering of incoming air to swine facilities located in dense regions of production has been proposed as a means to reduce the risk of airborne transport of PRRSV.

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PRRSV in serum and oral fluid samples from individual boars: will oral fluid replace serum for PRRSV surveillance?

The purpose of the present study was to determine whether oral fluid samples could be used to monitor individually-housed adult boars for PRRSV infection.

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PRRSV enhances PCV2a and PCV2b replication and duration of shedding

The objectives of this study were to determine if co-infection of piglets with PRRSV and PCV2 has any affect on PCV2 shedding characteristics and if there are differences in shedding patterns between PCV2 subtypes (PCV2a and PCV2b) in co-infected pigs.

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Oral fluids - Sampling

Over the last several years, new sampling, monitoring and diagnostic tools for the swine industry that are faster, simpler and more cost effective have been developed and validated. One of these techniques is the sampling and use of oral fluids (saliva) as specimens for diagnostics in swine.

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USA: PRRS costs industry $641 million annually

A new study, underwritten by the Pork Checkoff and conducted by Iowa State University, estimates that porcine reproductive and respiratory syndrome (PRRS) continues to be a major drag on the U.S. pork industry.

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Protecting the pregnant sow from PRRS: Research findings

We evaluated the efficacy of serum inoculation to immunize gilts in prevention of reproductive PRRS following late-gestation challenge with the “homologous” virus.

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Impact of selected parameters on efficacy of pen based oral fluid collection from pigs

Oral fluid testing is becoming important tool in diagnostic and epidemiological studies of PRRSV, PCV2 and SIV infections. However, sample collection requires understanding of pigs behavior as many of it aspects directly impact the yield of oral fluid. The aim of the present study is to analyse factors affecting the amount of oral fluid collected in standard pig herds in Poland.

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Median infectious dose (ID50) of PRRSV for young pigs via aerosol exposure

The objective of this research was to quantify the likelihood of PRRSV transmission via aerosol as a function of exposure dose. This data is critical to understanding of airborne transmission of PRRSV between pigs, within herds, and between herds.

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A comparison of PRRS virus PCR testing methods: Serum PCR versus oral fluid PCR

The objective of this study was to evaluate the correlation between serum PRRSv PCR positives and oral fluids PRRSv PCR positives, to evaluate the detection dynamics between serum and oral fluids PRRSv PCR positives, and to determine the effects of pooling samples.

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Thailand - Unexpected increase in morbidity or mortality of a swine listed disease

An increase in the morbidity/mortality has been observed in the area of Amphur Ban-Ra-Kam (Phitsanulok province) and PRRS is suspected based on clinical signs.

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Aerial mapping: Adding to the swine industry’s toolbox for area regional disease control

Area regional disease control (ARDC) strategies are an important tool in the swine industry due to the ability of many swine diseases, most notably PRRS, to spread by methods other than direct animal contact.