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Bulletin No. 24 - Spring 2006
Summary
In this edition there are two papers about a new agent thought to be involved in the ethio-pathogeny of gastric ulcers in pigs. You will also find a large number of communications presented at the International Conference on Animal Circoviruses and Associated Diseases, European Society for Veterinary Virology, Belfast, 2005, that confirm that maternal immunity has a role. Another paper to note, shows a correlation of cell-mediated immunity against porcine reproductive and respiratory syndrome virus with protection against reproductive failure in sows during outbreaks of porcine reproductive and respiratory syndrome in commercial herds.Contents
Virology- PMWS-PCV2-PCVD-PDNS
- A cohort study on time to PCV2 seroconversion in three post-weaning multisystemic wasting syndrome (PMWS) affected farms.
- An epidemiological case-control study of post-weaning multisystemic wasting syndrome (PMWS) and porcine dermatitis and nephropathy syndrome (PDNS) in pigs in The Netherlands.
- Australian piggeries investigated for PMWS.
- Benefit of PCV2 serological and genomic load profiles on PMWS diagnosis in field cases.
- Characterization of a previously unidentified viral protein in porcine circovirus type 2-infected cells and its role in virus-induced apoptosis.
- Correlation between type of adaptive immune response against porcine circovirus type 2 and level of virus replication.
- Development of the immune system in the neonatal piglet and its interaction with PCV2 infection.
- Dynamics of seroconversion to PCV2, PPV and PRRSV in PMWS affected and PMWS free herds in Poland.
- Evidence of genetics influence on the expression of porcine circovirus disease (PCVD) in postweaning pigs.
- Immunological longitudinal PMWS cohort study.
- Impact of the route on the transfection effectiveness with infectious cloned genomic DNA of type 2 porcine circovirus.
- Influence of porcine circovirus type 2 (PCV2)-infection on efficacy and safety of a modified live porcine reproductive and respiratory syndrome (PRRSV) vaccine.
- Interferon-gamma enhances porcine circovirus 2 infection in vitro.
- Nonsuppurative myocarditis caused by porcine circovirus type 2 in a weak-born piglet.
- PCV2 infection dynamics in two farms: relationship with PMWS expression, mortality and weight.
- PMWS: an emerging disease identified in archived porcine tissues.
- Porcine circovirus type 2 blocks immune activation of natural interferon producing cells.
- Porcine circovirus type 2 enteritis is an important differential diagnosis to porcine proliferative enteropathy caused by Lawsonia intracellularis.
- Porcine circovirus type 2: enzyme-linked immunosorbent assay (ELISA) for the detection of antigen and antibodies in feces.
- Porcine dermatitis and nephropathy syndrome (PDNS) is associated with a systemic cytokine expression profile indicative of proinflammation and a Th1 bias.
- Protection of piglets against a PCV2 experimental challenge by vaccinating gilts with an inactivated adjuvanted PCV2 vaccine.
- Search for viral triggers on a PMWS affected farm.
- Vaccination strategies for the control of circoviral diseases in pigs.
- Porcine Reproductive and Respiratory Syndrome (PRRS)
- Assessment of the economic impact of porcine reproductive and respiratory syndrome on wine production in the United States.
- Correlation of cell-mediated immunity against porcine reproductive and respiratory syndrome virus with protection against reproductive failure in sows during outbreaks of porcine reproductive and respiratory syndrome in commercial herds.
- Porcine reproductive and respiratory syndrome (PRRS) virus-specific interferon-γ+ T-cell responses after PRRS virus infection or vaccination with an inactivated PRRS vaccine.
- Classical Swine Fever
- Classical swine fever (CSF) in wild boar: the role of the transplacental infection in the perpetuation of CSF.
- Classical swine fever in South Africa after 87 years' absence. [Letter]
- Nictitating membrane as a potentially useful postmortem diagnostic specimen for classical swine fever.
- Statistical evaluation of classical swine fever surveillance plans in Italy.
- Avian Influenza
- Studies of H5N1 influenza virus infection of pigs by using viruses isolated in Vietnam and Thailand in 2004.
- Bovine spongiform encephalopathy (BSE)
- Poultry, pig and the risk of BSE following the feed ban in France - A spatial analysis .
- Helicobacter
- Experimental induction of bacterial gastritis and gastric ulcer disease in gnotobiotic swine inoculated with porcine Helicobacter-like species.
- Isolation and preliminary characterization of a novel Helicobacter species from swine.
- Study on the role of gastric Helicobacter infection in gross pathological and histological lesions of the stomach in finishing pigs.
- Mycoplasma hyopneumoniae
- Interaction of M. Hyo with other pathogens.
