Congenital toxoplasmosis in Abyssinian cats

Dubey, J. P.; Johnstone, I.; Menrath, Victor H.; Topper, Michael J.

doi:10.1016/0304-4017(89)90127-1

Cited by 8 publications

(4 citation statements)

References 1 publication

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“…Cats become infected by ingesting animal tissues containing tissue cysts. Reproductive effects of toxoplasmosis in cats are most common in pregnant queens that develop neurologic disease and subsequently abort and in kittens infected transplacentally that die shortly before or after birth [33,45,46]. Adult cats may be more likely to be infected with T. gondii as they age [47] or if they have a concurrent viral infection [48].…”

Section: Protozoanmentioning

confidence: 99%

Clinical management of pregnancy in cats

Kustritz

2006

Theriogenology

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Average gestation length in domestic cats is 65.6 days, with a range of 52-74 days. Average reported litter size is 4.0 kittens per litter; litter size is not correlated with number of matings in a given estrus. Superfecundation is common in domestic cats; superfetation never has been definitively proven to occur. Eclampsia may occur during pregnancy in queens, with non-specific clinical signs. Ectopic pregnancy and uterine torsion have been reported. Pregnancy loss may be due to infectious causes, including bacteria, viruses or protozoa, or non-infectious causes, such as hypoluteoidism and chromosome errors.

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Section: Protozoanmentioning

confidence: 99%

Clinical management of pregnancy in cats

Kustritz

2006

Theriogenology

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“…In the remaining kittens the source of infection could not be determined. In spite of the fact that congenitallyinfected kittens can excrete T. gondii oocysts 1-3 months after birth (Dubey & Carpenter, 1993), we have evidence from the serological data (post-natal seroconversion after the 10th week of life) that in the examined litter congenital infection did not occur.…”

Section: Discussionmentioning

confidence: 57%

Toxoplasmosis in Pallas' cats (Otocolobus manul) raised in captivity

Basso

Edelhofer

Zenker³

et al. 2005

Parasitology

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S U M M A R YManuls or Pallas' cats (Felis manul, syn. Otocolobus manul) are endangered wild cats from Central Asia kept and bred in many zoos. Despite good breeding success young cats frequently die from acute toxoplasmosis. From 1998 to 2002, a breeding pair in the Schönbrunn Zoo in Vienna, Austria, gave birth to 24 kittens ; 58 % of kittens died between the 2nd and the 14th week of life, mostly due to acute toxoplasmosis. The epidemiology of toxoplasmosis in Pallas' cats was examined and a control strategy to protect the kittens from fatal toxoplasmosis was developed. One 12-week-old kitten from a litter of 6 born in 2001 died of generalized toxoplasmosis. This kitten had shed T. gondii oocysts that were bioassayed in mice. Toxoplasma gondii was isolated in tissue culture inoculated with tissues of these mice. The surviving animals were immediately treated with clindamycin for 16 weeks ; they acquired a natural infection and seroconverted by the end of this time without clinical signs.

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“…These oocysts mature in the environment and are disseminated through rain and surface water, resulting in widespread contamination of the environment (DUBEY & FRENKEL, 1972;DUBEY, 2001). Kittens are probably the major source of contamination as they are common and produce large numbers of oocysts (DUBEY & CARPENTER, 1993).…”

Section: Introductionmentioning

confidence: 99%

“…Waterborne outbreaks of acute toxoplasmosis worldwide reinforce the transmission of T. gondii to humans through water contaminated with oocysts and may have a greater epidemiological impact than previously believed (DUBEY & CARPENTER, 1993;KARANIS et al, 2007 (MEIRELES et al, 2004). Ooccysts can be detected by examination of cat feces by concentration methods such as flotation in high-density sucrose solution, with risk of environmental and operator contamination due to extensive manipulation (DUBEY, 2004).…”

Section: Introductionmentioning

confidence: 99%

Quantitative toxoplasma gondii oocyst detection by a modified Kato Katz test using Kinyoun staining (KKK) in ME49 strain experimentally infected cats

Meireles

Tsutsui

Carmo

et al. 2008

Rev. Inst. Med. trop. S. Paulo

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SUMMARYWe detected Toxoplasma gondii oocysts in feces of experimentally infected cats, using a Kato Katz approach with subsequent Kinyoun staining. Animals serologically negative to T. gondii were infected orally with 5x10 2 mice brain cysts of ME49 strain. Feces were collected daily from the 3 rd to the 30 th day after challenge. Oocysts were detected by qualitative sugar flotation and the quantitative modified Kato Katz stained by Kinyoun (KKK). In the experimentally infected cats, oocysts were detected from the 7 th to 15 th day through sugar flotation technique, but oocysts were found in KKK from the 6 th to 16 th day, being sensitive for a larger period, with permanent documentation. The peak of oocysts excretion occurred between the 8 th to 11 th days after challenge, before any serological positive result. KKK could be used in the screening and quantification of oocysts excretion in feces of suspected animals, with reduced handling of infective material, decreasing the possibility of environmental and operator contamination.

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Congenital toxoplasmosis in Abyssinian cats

Cited by 8 publications

References 1 publication

Clinical management of pregnancy in cats

Clinical management of pregnancy in cats

Toxoplasmosis in Pallas' cats (Otocolobus manul) raised in captivity

Quantitative toxoplasma gondii oocyst detection by a modified Kato Katz test using Kinyoun staining (KKK) in ME49 strain experimentally infected cats

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