Results 21 to 30 of about 17,322 (187)

Sporulation of Cyclospora sp. oocysts [PDF]

open access: yesApplied and Environmental Microbiology, 1997
Cyclospora sp. oocysts sporulated maximally at 22 and 30 degrees C for 14 days retarded sporulation. Up to 12% of human- and baboon-derived oocysts previously stored at 4 degrees C for 1 to 2 months sporulated when stored for 6 to 7 days at 30 degrees C.
H V, Smith   +3 more
openaire   +2 more sources

Toxoplasma gondii Oocyst–specific Antibodies and Source of Infection

open access: yesEmerging Infectious Diseases, 2010
Infection source can determine cost-effective public health interventions. To quantify risk of acquiring Toxoplasma gondii from environmental sources versus from meat, we examined serum from pregnant women in Chile.
Claudia A. Muñoz-Zanzi   +3 more
doaj   +1 more source

Administering Eimeria maxima oocysts through drinking water improves coccidiosis vaccine uptake in broiler chickens

open access: yesJournal of Applied Poultry Research, 2023
SUMMARY: Vaccination against avian coccidiosis is increasingly being used by the poultry industry to prevent outbreaks of this parasitic disease, but problems with nonuniform administration of Eimeria oocysts by spray vaccination at the hatchery is ...
M.C. Jenkins   +5 more
doaj   +1 more source

Cryopreservation of infectious Cryptosporidium parvum oocysts [PDF]

open access: yesNature Communications, 2018
Abstract Cryptosporidiosis in an enteric infection caused by Cryptosporidium parasites and is a major cause of acute infant diarrhea in the developing world. A major bottleneck to research progress is the lack of methods to cryopreserve Cryptosporidium
Justyna J. Jaskiewicz   +5 more
openaire   +3 more sources

Waterborne toxoplasmosis investigated and analysed under hydrogeological assessment: new data and perspectives for further research

open access: yesMemorias do Instituto Oswaldo Cruz, 2015
We present a set of data on human and chicken Toxoplasma gondiiseroprevalence that was investigated and analysed in light of groundwater vulnerability information in an area endemic for waterborne toxoplasmosis in Brazil.
Flávia Pereira Vieira   +6 more
doaj   +1 more source

Some new species of Caryospora (Apicomplexa: Eimeriidae) from brazilian snakes, and a re-description of C. jararacae Carini, 1939

open access: yesMemorias do Instituto Oswaldo Cruz, 1991
The mature ooxysts of six new species of Caryospora are described from the faeces of Brazilian snakes. They are differentiated from other species previously recorded from reptiles, largely on the size and shape of the oocyst and sporocyst, structure of ...
Ralph Lainson   +2 more
doaj   +1 more source

Calcium-Mediated Biophysical Binding of Cryptosporidium parvum Oocysts to Surfaces Is Sensitive to Oocyst Age [PDF]

open access: yesApplied and Environmental Microbiology, 2019
The mechanisms by which pathogens bind to surfaces are of interest to a wide variety of scientific communities, as these mechanisms drive infectivity, fate, and transport of the pathogenic organisms. This study begins to reveal the mechanism of direct binding of Cryptosporidium parvum to surfaces containing both ...
Tooba, Sarkhosh   +3 more
openaire   +2 more sources

Prevalence of Toxoplasma gondii infection in cats in southwestern Poland

open access: yesAnnals of Agricultural and Environmental Medicine, 2018
Objective An assessment of the prevalence of Toxoplasma gondii infection in cats from southwestern Poland using serology, coproscopy and PCR methods. Material and methods In total, 208 cats (139 females and 68 males), aged 0.5–12 years (mean=2.6) from
Jacek Sroka   +5 more
doaj   +1 more source

Dynamics of Toxoplasma gondii Oocyst Phagocytosis by Macrophages

open access: yesFrontiers in Cellular and Infection Microbiology, 2020
Oocysts are the environmentally resistant stage of the protozoan parasite Toxoplasma gondii. They are responsible for foodborne infections in humans and animals worldwide.
Omar Ndao   +16 more
doaj   +1 more source

Mathematical Modeling of Toxoplasmosis Considering a Time Delay in the Infectivity of Oocysts

open access: yesMathematics, 2022
In this paper, we study the effect of the introduction of a time delay on the dynamics of toxoplasmosis. This time delay is the elapsed time from when oocysts become present in the environment and when they become infectious.
Gilberto González-Parra   +2 more
doaj   +1 more source

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