Brucella suis infection in domestic pigs and wild boar in Croatia

Cvetnić, Željko; Špičić, Silvio; Tončić, Josip; Benić, Miroslav; Albert, Daniel M.; Thiébaud, M.; Garin‐Bastuji, Bruno

doi:10.20506/rst.28.3.1947

Cited by 59 publications

(51 citation statements)

References 18 publications

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“…Both biovars 1 and 3 have been reported in the United States, Australia, and China. 35 Biovar 2 is the most common strain in Europe. 50,118 Biovars 1, 2, and 4 can be transmitted from swine to cattle, inducing transient seroconversion, which can confound B. abortus diagnostic assays.…”

Section: Brucella Suismentioning

confidence: 99%

Advancement of Knowledge of Brucella Over the Past 50 Years

2014

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Fifty years ago, bacteria in the genus Brucella were known to cause infertility and reproductive losses. At that time, the genus was considered to contain only 3 species: Brucella abortus, Brucella melitensis, and Brucella suis. Since the early 1960s, at least 7 new species have been identified as belonging to the Brucella genus (Brucella canis, Brucella ceti, Brucella inopinata, Brucella microti, Brucella neotomae, Brucella ovis, and Brucella pinnipedialis) with several additional new species under consideration for inclusion. Although molecular studies have found such high homology that some authors have proposed that all Brucella are actually 1 species, the epidemiologic and diagnostic benefits for separating the genus based on phenotypic characteristics are more compelling. Although pathogenic Brucella spp have preferred reservoir hosts, their ability to infect numerous mammalian hosts has been increasingly documented. The maintenance of infection in new reservoir hosts, such as wildlife, has become an issue for both public health and animal health regulatory personnel. Since the 1960s, new information on how Brucella enters host cells and modifies their intracellular environment has been gained. Although the pathogenesis and histologic lesions of B. abortus, B. melitensis, and B. suis in their preferred hosts have not changed, additional knowledge on the pathology of these brucellae in new hosts, or of new species of Brucella in their preferred hosts, has been obtained. To this day, brucellosis remains a significant human zoonosis that is emerging or reemerging in many parts of the world.Keywords Brucella, pathogenesis, zoonosis, reservoir hosts, laboratory modelsIn 1966, the first issue of Pathologia Veterinaria-now known as Veterinary Pathology-published an article on the characteristics of Brucella granulomas by K. L. Jacob, and the third issue included a manuscript by B. I. Osburn and P. C. Kennedy describing pathologic and immunologic responses of fetal lambs after infection with Brucella ovis. As the journal embarks on its second half-century of publication, it seems appropriate to assess the advancement of knowledge on this topic since these articles were published in the first issues of the journal.Fifty years ago, bacteria in the genus Brucella were known to cause infertility and reproductive losses with predilection for causing placentitis, fetal pneumonia, and mastitis. At that time, the genus contained only Brucella abortus, Brucella melitensis, and Brucella suis, the 3 classic species of brucellae, and these were generally thought to be somewhat hostspecific pathogens of cattle, sheep and goats, and swine, respectively. They were also known to be zoonotic, with the capability for causing clinical disease in humans. At that time, taxonomy placed the 3 classic species in the family Brucellaceae, with other bacterial genera such as Bordetella, Pasteurella and so on. Although scientific and practical knowledge of brucellosis has increased dramatically, in many countries, brucellosis continu...

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Section: Brucella Suismentioning

confidence: 99%

Advancement of Knowledge of Brucella Over the Past 50 Years

2014

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“…It is considered as one of the great public health problem all over the world [1]. There are five biovars of B. suis with biovars 1, 2 and 3 of Brucella suis infect primarily domestic and feral pigs, as well as wild boar (Sus scrofa) [2][3][4]. Brucellosis in pigs is a chronic disease most often characterized by infertility and abortion in sows and by orchitis in boars [5].…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence of Brucellosis from Pigs: The First Report in Central Ethiopia

Kebeta¹

2014

J Veterinar Sci Technol

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A cross-sectional study was carried out to determine seroprevalence of brucellosis from pigs in Central Ethiopia from October, 2013 to May, 2014. A total of 553 blood samples were collected and sera were tested with Rose Bengal Plate Test (RBPT). Out of 553 sera 25 (4.5%) were positive for Brucella antibodies. The results showed that higher seroprevalence in young (<12 months) (5.9%) and male (8.2%) compared to adult (≥12 months) (3.6%) and female pigs (1.6%). The highest positive rates were obtained from pigs originated from Adama area (13.1%) followed by pigs from Addis Ababa area (8.3%). The study showed statistically significant difference (P<0.05) in seroprevalence between origin and sexes of pigs considered. Our study demonstrated the first report of brucellosis from pigs in Central Ethiopia. Therefore further detailed investigations are needed as brucellosis has significant economic implications in pigs and public health importance.

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“…Occurrence of anti-Brucella antibodies in intensive pig farming and in non-technified pig herds Thereby Gresham et al (2002) showed that the prevalence of brucellosis in feral pig population in the South Carolina state increased gradually from 18% to over 40% in a decade, being this population source of several infectious diseases for domestic pigs. Between 2000 and 2004, a seroepidemiological survey on 93,107 samples from 1,997 herds in Croatia found an individual prevalence of 1% and a herd prevalence of 3.4%., With the exception of two herds, almost all of the infected animals were from non-technified pig herds, which enables contact with wild animals (Cvetnić et al 2009). In Brazil, Freitas et al (2004) analyzed wild animals sera in South Pantanal and obtained seropositivity for Brucella spp.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of anti-Brucella antibodies in intensive pig farming and in non-technified pig herds

et al. 2016

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ABSTRACT.-Ricardo P., Oliveira L.G., Baraldi T.G., Mechler M.L., Almeida H.M.S., Silva G.C.P., Gatto I. The aim of this study was to determine the occurrence of antibodies anti-Brucella in 1,940 swine blood samples. Out of the 1,940 sera samples, 1,594 were from 30 intensive pig farming from seven different states, collected during the slaughtering of animals, and 346 samples from 56 non-technified (subsistence) pig herds from Jaboticabal region, São Paulo State, Brazil. All samples were tested by Buffered Plate Acidified Antigen (BPAA) and considered positive in case of agglutination. If positive, the samples were tested by Complement Fixation Reaction (CFR) as a confirmatory test. Out of the 1,594, two were positive for BPAA but negative for CFR, so the occurrence was 0%. Among the 346 samples, two were positive for BPAA but only one was positive in the confirmatory test, whith a titer of 1:8. Thus, the occurrence was 0.29%, an important result to demonstrate the improvement of the sanitary status of Brazilian non-technified pig herds, despite the low conditions of production.

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Brucella suis infection in domestic pigs and wild boar in Croatia

Cited by 59 publications

References 18 publications

Advancement of Knowledge of Brucella Over the Past 50 Years

Advancement of Knowledge of Brucella Over the Past 50 Years

Seroprevalence of Brucellosis from Pigs: The First Report in Central Ethiopia

Occurrence of anti-Brucella antibodies in intensive pig farming and in non-technified pig herds

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