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Swine vaccines
Welcome to the page about Swine vaccines of Engormix; a source of knowledge on Swine vaccines.
1. Introduction Streptococcus suis is considered one of the most important bacterial swine pathogens leading to important economic losses to the porcine industry worldwide. S. suis has been reported globally in both traditional and intensive swine operations [1]. Control is based on an alarming overuse of antimicrobials, leading to a dramatic increase of the risk related to antimicrobial resistance. It is also an agent of disease in humans and considered in most OECD...
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Introduction & objective: Post-weaning Escherichia coli diarrhea (PWD), also called post-weaning enteric colibacillosis, in pigs remains a major cause of economic losses for the pig industry, due to either piglet death, or poor weight gain in surviving piglets [1,2]. PWD typically causes mild to severe watery diarrhea between 5 and 10 days after weaning and is primarily caused by enterotoxigenic Escherichia coli (ETEC). The most common adhesins found on ETEC from PWD in pigs are...
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Alan Young (Medgene Labs) spoke on outbreak responses, as well as vaccination programs and development, during 2019 NIAA Annual Conference: Animal Agriculture - Innovation, Technology and Consumer Engagement in Des Moines, Iowa, USA....
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Sarah Tomlinson (USDA) gave an overview of the process, during 2019 NIAA Annual Conference: Animal Agriculture - Innovation, Technology and Consumer Engagement in Des Moines, Iowa, USA....
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Dear Users, This is an interesting forum from our Spanish community, generated by Santiago Cabrera from Ecuador: What would be the picture of vaccination to immunize pregnant sows in order that the piglets at birth, are immune to various diseases that attack them?? For example on my farm I have problems Colibacillosis and pneumonia. What do you think?? ...
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Introduction Antimicrobial resistance and its potential transmission from animals to man has become a major issue, both politically and scientifically and is leading to greater controls, both in Europe and North America in particular, on how we use antibiotics in agriculture and veterinary medicine. There is deep and sincere concern expressed by the medical profession about the worsening antimicrobial resistance situation in man and the potential that agricultural/ veterinary...
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Introduction There are two basic principles underlying the possible success of a vaccination strategy against viral diseases. On the one hand, a reasonable cause–effect relationship must be recognized between a virus agent and an infectious disease or an infectious syndrome, fulfilling whenever possible Koch’s postulates. On the other hand, having defined an etiological agent, a protective immune response must be generated after vaccination...
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Introduction Antimicrobial resistance and its potential transmission from animals to man has become a major issue, both politically and scientifically and is leading to greater controls, both in North America and Europe, on how we use antibiotics in agriculture and veterinary medicine. There is deep and sincere concern expressed by the medical profession about the worsening antimicrobial resistance situation in man and the potential that agricultural/veterinary use of...
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Introduction Prior to the recognition that pigs and other livestock species can be reservoirs of methicillin resistant Staphylococcus aureus (MRSA) [1], S. aureus was considered a relatively unimportant organism in swine. Mounting concerns regarding the occupational and public health implications of MRSA in livestock populations have stimulated research of MRSA in animals, and particularly pigs, in many...
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Background Spray dried plasma (SDP) is a protein rich product obtained from the industrial fractionation of blood from healthy animals. Blood is collected with an anticoagulant and centrifuged to separate the blood cells. Plasma is then concentrated and spray-dried under high pressure to achieve a minimum of 80 °C throughout its substance (Fig. 1). With this procedure, proteins preserve most of their biological activity [1, 2]. ...
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Introduction Staphylococcus aureus is a gram positive coccus that forms part of the normal nasal microflora in humans and other animal species. In developed countries, approximately one-quarter to one-third of healthy people harbor S. aureus in the nose, but prevalence appears to be lower in developing countries [1]. Although considered to be a commensal in the nasopharynx, S....
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Introduction
Diseases caused by E. coli have been a recognised problem for as long as pigs have been raised. Early work in the 1960s and 1970s elucidated the pathogenic mechanisms of E. coli causing newborn diarrhea, and lead to the development of maternal vaccines which effectively control this form of the disease. However, maternal vaccination with these vaccines does not protect piglets...
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Introduction Bacteria of the genus Brachyspira are anaerobic intestinal spirochaetes that can cause diarrhoea and mortality in pigs and other species. This genus comprises seven officially named species and several provisionally named species. Six of these can be found in the porcine large intestine, and currently three are considered to be enteropathogenic to the pig [1]. The most important is Brachyspira...
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Introduction
The aim of this study was to investigate the efficacy of a one-shot vaccination applied either at weaning or 3 days before weaning in a herd infected with M. hyopneumoniae (Mhyo) and other respiratory pathogens.
Materials and methods
At 14 days of...
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Introduction: Potassium diformate, a double-salt of formic acid, has been shown in numerous trials to improve health and performance in piglets, growing-finishing pigs and sows. Thus, potassium diformate (KDF) has been approved in the European Union as the first non-antibiotic growth promoter for use in swine. The effect of KDF is often described as digestibility enhancing and strong antimicrobial. Similar effects have been demonstrated with sodium...
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Swine Influenza Virus (SIV) is known to be a primary respiratory pathogen for swine inducing typical lung lesions. In Europe and in Italy subtypes H1N1, H3N2 and H1N2 are almost endemic in many pig producing areas although with different prevalences in different countries in different times. In most of the cases SIV induces an acute infection of the respiratory tract whose consequences are depending on the “intrinsec pathogenicity/virulence” of a...
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Dr. John Morris Fairbrother spoke at the Congreso de Producción Porcina in Resistencia, Argentina, and gave his presentation "Recent trends in virulence and antimicrobial resistance of E. coli in pigs", where he explained the process, analyzed research data and discussed how to reduce levels of resistance....
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In less than a year, University of Saskatchewan (U of S) scientists have developed and tested a prototype vaccine that could protect the North American swine industry from a virus that has killed more than eight million pigs and cost more than $400 million in lost income since 2013.
The Porcine Epidemic Diarrhea Virus (PEDV) hit the United States in 2013 and spread to Canada in 2014. It was first discovered in Europe, and has become increasingly problematic...
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Introduction The farm was a closed herd using AI and comprised 430 breeding sows. Progeny were kept until 10 weeks of age when they were sent to a second unit for finishing. The farm was infected with PRRS virus, as well as enzootic pneumonia (EP) (Mycoplasma hyopneumoniae), pleuropneumonia (Actinobacillus pleuropneumoniae) (APP) and streptococcal meningitis/Arthritis (SM) (Streptococcus suis). The farm was planning to...
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