Survey for natural Neospora caninum infection in wild and captive birds

Mineo, Tiago Wilson Patriarca; Carrasco, Adriano de Oliveira Torres; Raso, Tânia de Freitas; Werther, Karin; Pinto, A. A.; Machado, Rosângela Zacarias

doi:10.1016/j.vetpar.2011.05.022

Cited by 39 publications

(31 citation statements)

References 27 publications

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“…However in two psittacine birds, Apicomplexa-like tissue cysts were found and were immunostained positive with N. caninum antisera (MINEO et al, 2011).…”

Section: Epidemiologymentioning

confidence: 97%

All about neosporosis in Brazil

Cerqueira‐Cézar

Calero‐Bernal

Dubey

et al. 2017

Rev. Bras. Parasitol. Vet.

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Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990's N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N. caninum and there are more than 200 papers on this subject from Brazil. However, most of the reports on neosporosis from Brazil are serological surveys. Overall, little is known of clinical neosporosis in Brazil, particularly cattle. The few reports pertain to sporadic cases of abortion with no information on epidemics or storms of abortion. The objective of the present review is to summarize all reports from Brazil and suggest topic for further research, including prevalence of N. caninum oocysts in soil or in canine feces, and determining if there are additional definitive hosts, other than the domestic dog. There is need for a national survey in cattle using defined parameters. Future researches should focus on molecular characterization of N. caninum strains, possibility of vaccine production and relationship between wildlife and livestock epidemiology.Keywords: Neospora caninum, neosporosis, domestic animals, wild animals, Brazil. ResumoNeospora caninum é um protozoário parasita que possui os canídeos domésticos e selvagens, coiotes e lobos cinzentos como hospedeiros definitivos e vários animais de sangue quente como hospedeiros intermediários. Foi cultivado e nomeado em 1988. A neosporose é uma das principais doenças em bovinos e não tem significância em saúde pública. Desde 1990, N. caninum tem emergido como uma das principais causas de aborto em bovinos em todo o mundo, inclusive no Brasil. N. caninum também causa infecções clínicas em várias outras espécies animais. Consideráveis avanços foram feitos na compreensão da biologia desse parasita e há mais de 200 trabalhos sobre o assunto no Brasil. No entanto, a maioria dos relatos de neosporose do Brasil são relacionados a sorologia. Em geral, pouco se sabe sobre a neosporose clínica no Brasil, particularmente em bovinos. Os poucos relatos referem-se a casos esporádicos de aborto sem informações sobre epidemias ou surtos de aborto. O objetivo da presente revisão é resumir todos os relatos sobre N. caninum no Brasil e sugerir tópicos para pesquisas futuras, incluindo a prevalência de oocistos de N. caninum no solo ou em fezes caninas e determinar se há hospedeiros definitivos adicionais, exceto o cão doméstico no país. Uma pesquisa nacional em bovinos usando parâmetros definidos seria de grande importância. Pesquisas futuras deveriam ser focadas na caracterização de cepas de N. caninum, possibilidade de produção de vacinas e a relação epidemiológica entre a vida selvagem e o gado.Palavras-chave: Neospora caninum, neospo...

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“…However in two psittacine birds, Apicomplexa-like tissue cysts were found and were immunostained positive with N. caninum antisera (MINEO et al, 2011).…”

Section: Epidemiologymentioning

confidence: 97%

All about neosporosis in Brazil

Cerqueira‐Cézar

Calero‐Bernal

Dubey

et al. 2017

Rev. Bras. Parasitol. Vet.

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“…Mineo et al (2011) Wild pigs, Sus scrofa L. (Artiodactyla, Suidae), are one of the most invasive animal species worldwide (LOWE et al, 2000), and in Pantanal, wild pigs are the main hunting target, whereas the endemic species are protected by federal law and hunting is forbidden (DESBIEZ et al, 2011). Brazilian Pantanal has the country's largest wild pig population, which has become established over the last 200 years (DESBIEZ et al, 2011).…”

mentioning

confidence: 99%

Occurrence of antibodies against Neospora caninum in wild pigs (Sus scrofa) in the Pantanal, Mato Grosso do Sul, Brazil

Soares

Osava

Oliveira

et al. 2016

Braz. J. Vet. Res. Anim. Sci.

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Serum samples from 83 free living wild pigs (Sus scrofa) from the Nhecolândia region, Pantanal do Mato Grosso, Brazil, were examined for the presence of antibodies against Neospora caninum by means of the indirect fluorescence antibody test (IFAT) with a cut off of 50. Antibodies were present in 10.8%, with titers of: 1:200 in one animal, 1:400 in four and 1:800 in four.2 test showed an association between sex and presence of antibodies, with females showing occurrence of 20.5% and males 2.3% (p = 0.017). No association was found between age and occurrences of antibodies against this parasite. This was the first observation of N. caninum antibodies in Brazilian wild pigs from Pantanal.

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“…A fluorescein isothiocyanate-conjugated rabbit antichicken IgG was used as secondary antibodies, because no commercial conjugate specific to detect pheasant immunoglobulins is available. IgG domains of different bird species are variable and might not present the same homology with chicken antibodies; thus, the secondary antibody used could have negatively influenced the results of IFAT [12]. However, the obtained results revealed the exposure of pheasants to the 4 tick-borne agents studied.…”

Section: Discussionmentioning

confidence: 95%

Serological evidence of exposure to zoonotic tick-borne bacteria in pheasants (Phasianus colchicus)

Ebani¹,

Bertelloni²,

Mani³

2017

Ann Agric Environ Med.

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Introduction and objective. Previous studies on tick-borne pathogens in the avian population have focused mainly on the detection of the agents in ticks collected from birds, but data about the presence of tick-borne bacteria in these animals are scant. The aim of the presented study was to verify the exposure to some zoonotic tick-borne bacteria, in particular, Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, Coxiella burnetii, and the Rickettsia species of the Spotted Fever Group (SFG), in pheasants (Phasianus colchicus) living in a central Italy area, characterized by conditions favourable for the diffusion of the ticks. Materials and method. Blood serum samples from 276 farm-reared pheasants were examined by indirect immunofluorescence antibody test to detect antibodies against the 4 reported pathogens. Results. A total of 124 (44.92%) birds resulted as seropositive: in particular 3 (1.08%) to C. burnetii, 31 (11.23%) to A. phagocytophilum, 46 (16.67%) to B. burgdorferi s.l., 49 (17.75%) to SFG Rickettsia spp. antigens. Three pheasants resulted positive both to A. phagocytophilum and B. burgdorferi s.l. antigens, whereas 2 -both to B. burgdorferi s.l. and SFG Rickettsia spp. antigens. The antibody titers varied from 1:40-1:320. Conclusions. The obtained results show that the pheasants had developed antibodies to the investigated tick-borne agents. For this reason, they seem to be involved in the epidemiology of the studied tick-borne bacteria.

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Survey for natural Neospora caninum infection in wild and captive birds

Cited by 39 publications

References 27 publications

All about neosporosis in Brazil

All about neosporosis in Brazil

Occurrence of antibodies against Neospora caninum in wild pigs (Sus scrofa) in the Pantanal, Mato Grosso do Sul, Brazil

Serological evidence of exposure to zoonotic tick-borne bacteria in pheasants (Phasianus colchicus)

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