Page 24 of articles about prrs

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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Abstract

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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HealthArticle

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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News

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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Abstract

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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Abstract

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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Abstract

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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News

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.

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Oral fluid collection from individually-penned, PRRSV-infected boars

The objectives of this study were to determine if oral fluid samples 1) could be collected from individually-housed mature boars under field conditions and 2) could be used to detect PRRSV infection.

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PorkNews

New Zealand extends raw-pork import ban

The New Zealand high court has stopped the importation of raw pork that pig farmers fear could infect animals in NZ with a disease that kills unborn and young pigs.

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Global science network to protect against animal diseases

Defra is leading an international network research, funded by the EU, linking thousands of scientists across the world.

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New Zealand - Pork Import Health Standards effectively manage risk

The Ministry of Agriculture and Forestry (MAF) issued updates to four Import Heath Standards for pig meat, pig meat products and by-products from Canada, the EU, Mexico and the USA.

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Canada - Sask Pork prepares to launch western Canada PRRS-Free herd certification pilot project

The Saskatchewan Pork Development Board hopes to begin testing swine herds in western Canada for PRRS-Free Herd Certification within the next few months.

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Philippines: Swine industry situation and outlook

Despite the increases in the pork supply, deficit scenarios are expected in the 1st and 2nd quarters of 2011.