Results 31 to 40 of about 16,115 (214)

Use of Oxidative Stress Responses to Determine the Efficacy of Inactivation Treatments on Cryptosporidium Oocysts

Microorganisms, 2021
Cryptosporidium oocysts are known for being very robust, and their prolonged survival in the environment has resulted in outbreaks of cryptosporidiosis associated with the consumption of contaminated water or food.
Tamirat Tefera Temesgen, Kristoffer Relling Tysnes, Lucy Jane Robertson   +2 more
doaj   +1 more source

Monovalent Copper Oxide in Broiler Nutrition: Effects on Performance, Intestinal Lesions, and Oocyst Shedding During Mild Eimeria Challenge

Veterinary Sciences
Coccidiosis is a major economic threat in poultry, and with anticoccidials being phased out, cost-effective alternatives like copper (Cu) supplementation are of interest.
Nasima Akter, Thi Hiep Dao, Alip Kumar, David Cadogan, Tamsyn M. Crowley, Amy F. Moss   +5 more
doaj   +1 more source

Automated Image Analysis for Detection of Coccidia in Poultry

Animals
Coccidiosis, caused by the protozoan Eimeria sp., is one of the most common and costly diseases impacting the poultry industry. To establish effective control measures, it is essential to identify these protozoa.
Isaac Kellogg, David L. Roberts, Rocio Crespo   +2 more
doaj   +1 more source

ELISA study of oocyst-sporozoite transition in malaria vectors

Parasite, 2006
Intrinsic vector characteristics and environmental factors affect the sporogonic development of P. falciparum in Anopheles mosquitoes. We tested for the presence of the circumsporozoite protein, as a marker of the oocyst to sporozoite transition in ...
Czeher C., Labbo R., Djibrilla A., Here L., Arzika I., Duchemin J.B.   +5 more
doaj   +1 more source

Deposition of Cryptosporidium Oocysts in Streambeds [PDF]

Applied and Environmental Microbiology, 2006
ABSTRACT The transfer of Cryptosporidium oocysts from the surface water to the sediment beds of streams and rivers influences their migration in surface waters. We used controlled laboratory flume experiments to investigate the deposition of suspended Cryptosporidium parvum oocysts ...
Kristin E, Searcy, Aaron I, Packman, Edward R, Atwill, Thomas, Harter   +3 more
openaire   +2 more sources

Serum Metabolic Profiling of Oocyst-Induced Toxoplasma gondii Acute and Chronic Infections in Mice Using Mass-Spectrometry

Frontiers in Microbiology, 2018
Toxoplasma gondii is an obligate intracellular parasite causing severe diseases in immunocompromised individuals and congenitally infected neonates, such as encephalitis and chorioretinitis. This study aimed to determine whether serum metabolic profiling
Chun-Xue Zhou, Chun-Xue Zhou, Wei Cong, Xiao-Qing Chen, Xiao-Qing Chen, Shen-Yi He, Hany M. Elsheikha, Xing-Quan Zhu   +7 more
doaj   +1 more source

Macrophages facilitate the excystation and differentiation of Toxoplasma gondii sporozoites into tachyzoites following oocyst internalisation

, 2016
International audienceToxoplasma gondii is a common parasite of humans and animals, which is transmitted via oocysts in cat faeces or tissue cysts in contaminated meat.
Azas, Nadine, P, Dubey, Jitender, P, Ferguson, David JP, Freppel, Wesley, Puech, Pierre-Henri, Puech, Pierre-Henri, P, Ferguson, David, P, Dubey, Jitender P, Dumètre, Aurélien, Azas, Nadine, Freppel, Wesley, P   +10 more
core   +1 more source

Quantitative Risk Assessment of Oocyst Versus Bradyzoite Foodborne Transmission of Toxoplasma gondii in Brazil

Pathogens, 2023
Toxoplasma gondii is a globally distributed zoonotic protozoan parasite. Infection with T. gondii can cause congenital toxoplasmosis in developing fetuses and acute outbreaks in the general population, and the disease burden is especially high in South ...
Sophie Zhu, Elizabeth VanWormer, Beatriz Martínez-López, Lílian Maria Garcia Bahia-Oliveira, Renato Augusto DaMatta, Pedro Souto Rodrigues, Karen Shapiro   +6 more
doaj   +1 more source

Effectiveness of Cryptosporidium spp. oocysts detection and enumeration methods in water and milk samples Eficácia de métodos de detecção e enumeração de oocistos de Cryptosporidium spp. em amostras de água e leite

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
Cryptosporidium spp. oocyst recovery in water and milk samples was evaluated. Samples were inoculated with a suspension of 1.2×10(7) Cryptosporidium spp.
E.C.L. Machado, T.L.M. Stamford, L.C. Alves, R.G. Melo, N.K.S. Shinohara   +4 more
doaj   +1 more source

Protective effect of Aloe vera on growth performance, leucocyte count and intestinal injury in broiler chicken infected with coccidiosis

Journal of Applied Animal Research, 2020
Groups were designated as a positive control (+C), negative control (−C), Amprolium (AM1), Aloe vera, 2.5 g/l water (AV2.5) and Aloe vera 5 g/l water (AV5) during the finisher phase.
Zahoor Ahmad, Abdul Hafeez, Qudrat Ullah, Shabana Naz, Rifat Ullah Khan   +4 more
doaj   +1 more source