Results 171 to 180 of about 16,115 (214)

Toxoplasma oocysts as a public health problem

Trends in Parasitology, 2013
Waterborne outbreaks of Toxoplasma gondii have focused attention on the importance of oocysts shed in the feces of infected cats. Cat feces deposited annually into the environment in the United States total approximately 1.2 million metric tons. The annual oocyst burden measured in community surveys is 3 to 434 oocysts per square foot and is greater in
E Fuller, Torrey, Robert H, Yolken
openaire   +2 more sources

Gaseous disinfection of Cryptosporidium parvum oocysts

Applied and Environmental Microbiology, 1996
Purified oocysts of Cryptosporidium parvum suspended in approximately 400 microliters of phosphate-buffered saline or deionized water in microcentrifuge tubes were exposed at 21 to 23 degrees C for 24 h to a saturated atmosphere of ammonia, carbon monoxide, ethylene oxide, formaldehyde, or methyl bromide gas. Controls were exposed to air.
R, Fayer, T K, Graczyk, M R, Cranfield, J M, Trout   +3 more
openaire   +2 more sources

Pathogenicity of Toxoplasma gondii Oocysts to Ponies

American Journal of Veterinary Research, 1980
SUMMARY Nine ponies were fed 100,000 infective Toxoplasma gondii oocysts and were given corticosteroid injections before and after feeding the T gondii oocysts. Titers to the Sabin-Feldman dye tests (1:2 to 1:16,384) developed within postinoculation days (pid) 7 to 21 and antibodies persisted to pid 133.
N W, Al-Khalidi, S E, Weisbrode, J P, Dubey   +2 more
openaire   +2 more sources

Staining of coccidial oocysts

Veterinary Record, 1987
M B, Markus, J B, Bush
openaire   +2 more sources

Cultivation in vitro of Plasmodium gallinaceum oocysts

Experimental Parasitology, 1968
Abstract Large numbers of viable infectious Plasmodium gallinaceum sporozoites, virtually free of mosquito tissue, were obtained by culturing somewhat younger stages of the sporogonous cycle. Twenty or more oocysts were placed in each hanging- or sitting-drop culture.
openaire   +2 more sources

Staining of Isopora belli oocysts

Transactions of the Royal Society of Tropical Medicine and Hygiene, 1987
J B, Bush, M B, Markus
openaire   +2 more sources

Cryopreservation of Cryptosporidium sp. oocysts

Transactions of the Royal Society of Tropical Medicine and Hygiene, 1990
P, Rossi, E, Pozio, M G, Besse
openaire   +2 more sources

A Method of Staining the Oocysts of Coccidia

Science, 1931
H B, Crouch, E R, Becker
openaire   +2 more sources

oocyst, n.

2023
openaire   +1 more source

Dynamics and epidemiology of Toxoplasma gondii oocyst shedding in domestic and wild felids

Transboundary and Emerging Diseases, 2022
Elizabeth Vanwormer, Sophie Zhu, Karen Shapiro   +2 more
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