PRRSControl – PRRSControl https://prrscontrol.com Tue, 10 Feb 2026 09:07:42 +0000 en-US hourly 1 https://prrscontrol.com/wp-content/uploads/2018/04/favicon-45x45.jpg PRRSControl – PRRSControl https://prrscontrol.com 32 32 Can PRRSV1 Modified-Live vaccines be effective against PRRSV2? https://prrscontrol.com/prrsv1-mlv-effective-againts-prrsv2/ https://prrscontrol.com/prrsv1-mlv-effective-againts-prrsv2/#respond Fri, 23 Jan 2026 13:10:57 +0000 https://prrscontrol.com/?p=27343 Field data from South Korea show that a PRRSV1 modified-live vaccine can reduce piglet mortality and provide cross-protection in herds where PRRSV2 is circulating.

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]]> https://prrscontrol.com/prrsv1-mlv-effective-againts-prrsv2/feed/ 0 Early piglet vaccination with UNISTRAIN® PRRS induces similar neutralizing titres than 3-week-old vaccination https://prrscontrol.com/early_piglet_unistrain_prrs_vaccination/ https://prrscontrol.com/early_piglet_unistrain_prrs_vaccination/#respond Wed, 16 Jul 2025 08:08:16 +0000 https://prrscontrol.com/?p=27186 Laia Aguirre and colleagues¹ assessed the levels of Neutralizing Antibodies (NA) induced by two different PRRS1 Modified Live Vaccines (MLVs) when administered at 3 days of age, compared to vaccination at 3 weeks of age.

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]]> https://prrscontrol.com/early_piglet_unistrain_prrs_vaccination/feed/ 0 Pigs vaccinated with a PRRSV1 MLV developed potent immunity against Japanese PRRSV2 strains https://prrscontrol.com/vaccine-prrsv2-mlv-immunity-japanese-strains/ https://prrscontrol.com/vaccine-prrsv2-mlv-immunity-japanese-strains/#respond Wed, 05 Mar 2025 17:15:13 +0000 https://prrscontrol.com/vaccination-piglets-prrsv-mlv-mortality-copy/ Recently, Salvador Romero and colleagues, assessed the NA and CMI conferred UNISTRAIN® PRRS (PRRSV1 MLV, HIPRA) against the infection by PRRSV2 Japanese strains.

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]]> https://prrscontrol.com/vaccine-prrsv2-mlv-immunity-japanese-strains/feed/ 0 Vaccination of piglets with PRRSV-MLV promotes long-term reduction of mortality in nursery https://prrscontrol.com/vaccination-piglets-prrsv-mlv-mortality/ https://prrscontrol.com/vaccination-piglets-prrsv-mlv-mortality/#respond Mon, 20 Jan 2025 09:03:25 +0000 https://prrscontrol.com/prrsv-pigs-vaccinated-intradermally-copy/ In some regions, colder and wetter months are often perceived as associated with an increased severity of PRRS (Porcine Reproductive and Respiratory Syndrome) outbreaks in pig farms. As a result, certain farms adopt a seasonal vaccination approach, vaccinating piglets against PRRS only during these colder periods. While this strategy may appear cost-effective due to reduced vaccine and labour expenses, it risks undermining the goal of long-term stability within the farm.

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]]> https://prrscontrol.com/vaccination-piglets-prrsv-mlv-mortality/feed/ 0 Enhanced productivity and antibiotic reduction in pigs vaccinated intradermally with a PRRSV1 MLV on a Japanese PRRSV2-positive farm https://prrscontrol.com/prrsv-pigs-vaccinated-intradermally/ https://prrscontrol.com/prrsv-pigs-vaccinated-intradermally/#respond Mon, 04 Nov 2024 11:29:13 +0000 https://prrscontrol.com/impact-prrsv-vaccination-rosalia-strain-copy/ Vaccines can reduce the clinical outcome and productive impact of Porcine Reproductive and Respiratory Syndrome Virus (PRRSV), with two routes of administration available: intramuscular (IM) and intradermal (ID). Our goal was to evaluate the efficacy of two commercial PRRS MLV vaccines - one based on PRRSV1 (UNISTRAIN® PRRS, HIPRA; IM and ID), and another on PRRSV2 (strain VR-2332; IM) - in growing pigs on a Japanese PRRSV2-positive farm.

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]]> https://prrscontrol.com/prrsv-pigs-vaccinated-intradermally/feed/ 0 The impact of PRRSV vaccination over a highly pathogenic strain: the case of Rosalia https://prrscontrol.com/impact-prrsv-vaccination-rosalia-strain/ https://prrscontrol.com/impact-prrsv-vaccination-rosalia-strain/#respond Wed, 09 Oct 2024 06:54:57 +0000 https://prrscontrol.com/productive-economic-prrs-virulence-outbreaks-copy-2/ The emergence of the Rosalia strain has posed a critical question: how effective are current vaccines in controlling outbreaks caused by this highly pathogenic variant?

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]]> https://prrscontrol.com/impact-prrsv-vaccination-rosalia-strain/feed/ 0 Productive and economic impact of two PRRS increased virulence outbreaks within a swine farm in Spain https://prrscontrol.com/productive-economic-prrs-virulence-outbreaks/ https://prrscontrol.com/productive-economic-prrs-virulence-outbreaks/#respond Mon, 29 Jul 2024 07:45:41 +0000 https://prrscontrol.com/evaluation-prrs-piglet-vaccination-nursery-copy/ In the present study we assessed the productive and economic impact of two outbreaks caused by a PRRS strain of increased virulence on a swine farm in Spain.

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]]> https://prrscontrol.com/productive-economic-prrs-virulence-outbreaks/feed/ 0 Evaluation of PRRS piglet vaccination in a multi-origin nursery unit in Spain https://prrscontrol.com/evaluation-prrs-piglet-vaccination-nursery/ https://prrscontrol.com/evaluation-prrs-piglet-vaccination-nursery/#respond Tue, 25 Jun 2024 13:48:12 +0000 https://prrscontrol.com/impact-prrs-positivity-productivity-copy/ In this study, the efficacy of piglet vaccination was assessed in a multi-origin nursery unit in the southeast of Spain.

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]]> https://prrscontrol.com/evaluation-prrs-piglet-vaccination-nursery/feed/ 0 What is the impact of PRRS positivity status on productivity? https://prrscontrol.com/impact-prrs-positivity-productivity/ https://prrscontrol.com/impact-prrs-positivity-productivity/#respond Tue, 13 Feb 2024 08:41:14 +0000 https://prrscontrol.com/needle-free-vaccination-reduce-antibiotics-copy/ Effect of PRRS positivity on productivity within a large integrated pig production system in Europe.

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]]> https://prrscontrol.com/impact-prrs-positivity-productivity/feed/ 0 Vaccination of piglets against PRRS: why, when, and how https://prrscontrol.com/vaccination-piglets-prrs-why-when-how/ https://prrscontrol.com/vaccination-piglets-prrs-why-when-how/#respond Wed, 29 Nov 2023 10:23:30 +0000 https://prrscontrol.com/needle-free-vaccination-reduce-antibiotics-copy/ Control of the disease caused by the PRRS virus remains a source of frustration for all producers and veterinarians. And no wonder! The reasons why controlling the disease is so complex include the need for a multifactorial approach and the fact that no solution alone is exclusive and effective.

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