Rectal stenosis in pigs associated with Salmonella Typhimurium and porcine circovirus type 2 (PCV2) infection

Watanabe, Tatiane Terumi Negrão; Zlotowski, Priscila; Oliveira, Luiz Gustavo Schneider de; Rolim, Verônica Machado; Gomes, Marcos José Pereira; Snel, Gustavo Geraldo Medina; Driemeier, David

doi:10.1590/s0100-736x2011000600009

Cited by 4 publications

(3 citation statements)

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“…This nonproper submission of material for diagnosis is not restricted to cases of salmonellosis and is frequently observed in many veterinary diagnostic laboratories (Lucena et al 2010, Souza et al 2015. The use of IHC for the diagnosis of salmonellosis is described in sheep (Dagleish et al 2010), horses (Juffo et al 2017), swine (Watanabe et al 2011), turkeys (Beyaz et al 2010) and cattle (Pecoraro et al 2017, Costa et al 2018. In all analyzed materials in the present study, there was positive immunoreactivity in the liver and lung.…”

Section: Discussionsupporting

confidence: 50%

Salmonellosis in calves without intestinal lesions

et al. 2019

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Salmonellosis is a known cause of enteric disorders in calves. However, cases in the septicemic form may not present enteric lesions, which may lead the veterinary practitioner to not suspect salmonellosis, compromising the diagnosis. The current study describes the epidemiological, clinical, pathological and immunohistochemical aspects of septicemic salmonellosis in calves without enteric lesions. The protocols involving bovine material submitted to the Pathology Laboratory (LAP) of the “Faculdade de Medicina Veterinária e Zootecnia” (FAMEZ) of the “Universidade Federal do Mato Grosso do Sul” (UFMS) from January 1995 to July 2018 were studied. Cases confirmed or suggestive of septicemic salmonellosis in calves without enteric manifestations were selected. Fragments of the liver, lung, and spleen embedded in paraffin were submitted to immunohistochemistry (IHC). Only cases in which there was positive marking on the IHC or culture isolation of Salmonella were included in this study. Of a total of 5,550 cattle examined in the period, ten presented septicemic salmonellosis without enteric lesions. Clinical signs included mucosal pallor, apathy, hyperthermia, and dyspnea. Only three calves presented diarrhea, and two were found dead before clinical changes were observed. The most common necropsy findings were hepatosplenomegaly; yellow, orange or brown discolored livers; pale mucous membranes; inflated and sometimes red lungs; fibrin or fluid within body cavities; and gallbladder filled with inspissated bile. Jaundice was observed in three calves that had a concomitant infection with Anaplasma sp. Microscopically, paratyphoid hepatic nodules and interstitial pneumonia were the most frequent manifestations, followed by thrombosis and bacterial colonies in the spleen, lung, liver, and brain. A strong positive marking was observed in IHC, predominantly in the lung and to a lesser extent in the liver. Polymerase chain reaction (PCR) indicated the Dublin serotype as the causative agent in the samples of the four calves submitted to this procedure. In calves, the septicemic form was the major cause of death due to salmonellosis. Septicemic salmonellosis was usually not accompanied by diarrhea. The clinical signs of septicemia are nonspecific and of little assistance in the diagnosis. IHC has been shown to be efficient in the detection of the agent, mainly in the lung and especially in situations where it is not possible to perform bacterial culture.

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Section: Discussionsupporting

confidence: 50%

Salmonellosis in calves without intestinal lesions

et al. 2019

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“…Assim esse dado é pouco relevante para o diagnóstico das principais doenças na espécie e foi obtido nesse estudo somente para caracterização do rebanho local. Prolapso de reto (observado em um caso) e estenose retal (apesar de ambos estarem ligadas comumente a infecções bacterianas) (Watanabe et al 2011), síndrome dos membros abertos (observada em quatro casos) e uma grande quantidade de malformações (observadas em 11 casos) são descritas como doenças de possível caráter genético (Sobestiansky et al 2012b), porém nem sempre ligadas a uma raça específica. Mioclonia congênita (raças Landrace e Wessex) (Oliveira 2012a) e rim cístico/hidronefrose, condição extremamente vista em abatedouros (Grist 2007), são descritos como genéticos ligados a raças específicas.…”

Section: Resultsunclassified

Características e frequência das doenças de suínos na Região Central do Rio Grande do Sul

et al. 2013

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RESUMO.-Visando-se determinar as características e frequência das doenças na população suína na região de abrangência do Laboratório de Patologia Veterinária (LPV) da Universidade Federal de Santa Maria (UFSM), foi realizado um estudo retrospectivo de todos os diagnósticos de necropsias realizadas nesta espécie no período de 1964 a 2011. Foram separados 564 casos com diagnósticos conclusivos. A criação suína na região de abrangência do estudo é predominantemente familiar e as doenças diagnosticadas, refletem esta realidade. As doenças infecciosas e parasitá-rias foram as mais prevalentes [380(68,1%) was carried out in order to determine the characteristics and frequency of diseases in the swine population raised in the region the region covered by the activities of LPV. Five hundred and four cases with conclusive diagnosis were found. The type of pig-raising in the area is mainly a familiar enterprise and the diseases found in this survey reflect this reality Infectious and parasitic diseases were the most prevalent [380(68.1%)], followed, in descending order of frequency, by nutritional and metabolic diseases [64(11.5%)], poisonings and toxi-infections and development disorders [15(2.7%)]. Other disorders due to varying etiologies, especially trauma, were cause of death in just over 11% of the cases. Bacterial diseases were responsible for more than half of the causes of death in pigs of the studied population, pointing to the influence of management, environmental and nutritional regional husbandry. The moist frequent disease diagnosed in pigs in the region in the region covered by the study was edema disease which along with other forms of infection by Escherichia coli was responsible for 23% of deaths. Viral diseases and neoplasm were not major causes of death in pigs in the region studied. Nutritional hepatosis and aflatoxicosis are important diseases in pigs in this region and and there causation are mainly linked to nutritional management.INDEX TERMS: Swine diseases, veterinary pathology, epidemiology, causes of death, retrospective study.

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“…Some of these are Porcine parvovirus [ 125 ], Porcine reproductive and respiratory syndrome virus [ 126 ], Swine Hepatitis E virus [ 127 ], Swine influenza virus , Mycoplasma hyopneumoniae [ 128 ], E. coli [ 129 ], and Salmonella spp. [ 130 ]. A retrospective study of PCV2-infected swine samples has shown that PRRSV was the most frequent coinfecting pathogen (51.9%), followed by M. hyopneumoniae (35.5%), bacterial septicemia pathogens (14%), bacterial pneumonia pathogens (7.6%), and SIV (5.4%) [ 131 ].…”

Section: Factors Associated With Clinical Manifestation Of Pcv-associ...mentioning

confidence: 99%

Revisiting Porcine Circovirus Infection: Recent Insights and Its Significance in the Piggery Sector

Maity,

Samanta,

Deb

et al. 2023

Vaccines

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Porcine circovirus (PCV), a member of the Circoviridae family within the genus Circovirus, poses a significant economic risk to the global swine industry. PCV2, which has nine identified genotypes (a–i), has emerged as the predominant genotype worldwide, particularly PCV2d. PCV2 has been commonly found in both domestic pigs and wild boars, and sporadically in non-porcine animals. The virus spreads among swine populations through horizontal and vertical transmission routes. Despite the availability of commercial vaccines for controlling porcine circovirus infections and associated diseases, the continuous genotypic shifts from a to b, and subsequently from b to d, have maintained PCV2 as a significant pathogen with substantial economic implications. This review aims to provide an updated understanding of the biology, genetic variation, distribution, and preventive strategies concerning porcine circoviruses and their associated diseases in swine.

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Rectal stenosis in pigs associated with Salmonella Typhimurium and porcine circovirus type 2 (PCV2) infection

Cited by 4 publications

References 10 publications

Salmonellosis in calves without intestinal lesions

Salmonellosis in calves without intestinal lesions

Características e frequência das doenças de suínos na Região Central do Rio Grande do Sul

Revisiting Porcine Circovirus Infection: Recent Insights and Its Significance in the Piggery Sector

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