Development of Toxoplasma Oocysts in Neotropical Felidae *

Jewell, Marjorie L.; Frenkel, J. K.; Johnson, Karl M.; Reed, Vaughan; Ruiz, Armando

doi:10.4269/ajtmh.1972.21.512

Cited by 75 publications

(32 citation statements)

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“…Wild cats, including jaguars, ocelots, pumas, jaguarundis, and margays, were quite numerous and are still present in the forest of French Guiana. At least the first four of these felines are known to eliminate Toxoplasma oocysts in their stools (29,36). However, the number and frequency of eliminated oocysts and the length of time during which these felines eliminate oocysts during natural infections are not known.…”

Section: Vol 40 2002 Severe Primary Toxoplasmosis In French Guiana mentioning

confidence: 99%

Severe Acquired Toxoplasmosis in Immunocompetent Adult Patients in French Guiana

Carme

Bissuel²,

Ajzenberg³

et al. 2002

J Clin Microbiol

268

167

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The most common presentation of symptomatic postnatally acquired toxoplasmosis in immunocompetent patients is painless cervical adenopathy. Acute visceral manifestations are associated in rare cases. We report 16 cases of severe primary toxoplasmosis diagnosed in French Guiana during a 6.5-year period. All of the subjects were immunocompetent adults hospitalized with clinical presentations consisting of a marked, nonspecific infectious syndrome accompanied by an altered general status with at least one visceral localization, mainly pulmonary involvement (14 cases). Acute toxoplasmosis was diagnosed according to the results of serological tests suggestive of recent primary infection and the absence of an alternative etiology. Recovery was rapid following specific antitoxoplasmosis treatment. Thirteen of the 16 patients had consumed game in the 2 weeks before the onset of the symptoms, and in eight cases the game was considered to have been undercooked. Toxoplasma strains, which were virulent in mice, were isolated from three patients. Microsatellite analysis showed that all of these isolates exhibited an atypical multilocus genotype, with one allele found only for isolates of this region.

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Section: Vol 40 2002 Severe Primary Toxoplasmosis In French Guiana mentioning

confidence: 99%

Severe Acquired Toxoplasmosis in Immunocompetent Adult Patients in French Guiana

Carme

Bissuel²,

Ajzenberg³

et al. 2002

J Clin Microbiol

268

167

View full text Add to dashboard Cite

show abstract

“…Golubkov, 1979Golubkov (1979 Yakimoff and Kohl-Yakimoff, 1912; Toxoplasma pyrogenes Castellani, 1913; Toxoplasma musculi Sangiorgi, 1913; Toxoplasma sciuri Coles, 1914; Toxoplasma ratti Sangiorgi, 1915; Toxoplasma francae (de Mello, 1915) Wenyon, 1926 (Mil-ler, Frenkel, and Dubey, 1972;Jewell et al, 1972;Marchiondo, Duszynski, and Maupin, 1976 (Remington, Earle, and Yagura, 1970 Lunde (1973) said that about 30% of the population in the United…”

Section: Host Genus Potosmentioning

confidence: 99%

The coccidian parasites (Protozoa, Apicomplexa) of carnivores

Levine¹,

Ivens²

1981

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“…and Leopardus geoffroyi in captivity displayed several 156 ; d. Patton et al diarrheal episodes, all of which included the elimination of oocysts 13 . However, little is known about the quantity and period of elimination of oocysts in wild animals.…”

Section: Tion Felis Silvestris Prionailurus Bengalensis Euptiluramentioning

confidence: 99%

Toxoplasma gondii em pequenos felinos silvestres neotropicais

Cañón-Franco

Araujo

Gennari

2013

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

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In the last decade, studies on wildlife worldwide have discovered key epidemiological aspects of the sylvatic cycle of Toxoplasma gondii. However, despite the known role of wild felines as definitive hosts in the transmission and maintenance of this parasite, few studies have focused on the involvement of these animals. Brazil exhibits the largest number of wild felid species in the Americas, all of which have a critical conservation status. However, serological detections, epidemiological studies and some molecular characterizations of T. gondii have primarily used Neotropical felid populations that are maintained in captivity, which does not reflect the disease behavior in free-living conditions. A systematic review of the worldwide scientific literature was conducted focusing on toxoplasmosis in small Neotropical felids. This review covered a number of aspects, including the state of scientific research, parasite transmission in the wild, the genetic characteristics of isolates, the relationship between these genetic characteristics and the pathogenicity of the parasite, and the risk factors linked to conflicts with humans. The present review shows the relevance of studying these felid populations based on their frequent interactions with humans in peri-urban areas and the need for further comprehensive studies to establish the real significance of T. gondii in public and animal health in tropical and temperate regions.Keywords: Toxoplasma gondii. Wild felids.Neotropical felids. Toxoplasmosis. ResumoNa ultima década, pesquisas em animais silvestres no mundo todo, tem demonstrado aspectos importantes na epidemiologia do ciclo silvestre de Toxoplasma gondii. No entanto, apesar do papel conhecido dos felinos silvestres como hospedeiros definitivos na transmissão e manutenção desse parasita, há poucos estudos sobre o envolvimento desses animais. O Brasil possui a maior quantidade de espécies de felinos silvestres do continente americano, todas em estado crítico de conservação. Porém, a detecção sorológica, pesquisas epidemiológicas e algumas caracterizações moleculares do T. gondii nestas espécies, utilizaram principalmente populações de felinos neotropicais mantidos em cativeiro, o que não reflete o comportamento da doença em condições de vida livre.Uma revisão sistemática da literatura cientifica mundial foi realizada focando a toxoplasmose em pequenos felinos neotropicais, abrangendo aspectos como o estado da pesquisa cientifica, transmissão do parasita na vida silvestre, características genéticas dos isolados e sua relação com a patogenicidade, além dos fatores de risco ligados aos conflitos com o homem. Esta revisão mostra a importância do estudo dessas populações de felinos, em função das frequentes interações com o homem em áreas peri-urbanas e a necessidade de estudos mais abrangentes, que estabeleçam a real importância do T. gondii no tangente á saúde pública e saúde animal nas regiões tropicais e temperadas.

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Development of Toxoplasma Oocysts in Neotropical Felidae *

Cited by 75 publications

References 0 publications

Severe Acquired Toxoplasmosis in Immunocompetent Adult Patients in French Guiana

Severe Acquired Toxoplasmosis in Immunocompetent Adult Patients in French Guiana

The coccidian parasites (Protozoa, Apicomplexa) of carnivores

Toxoplasma gondii em pequenos felinos silvestres neotropicais

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