Results 141 to 150 of about 847 (159)
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Experimental and Applied Acarology, 2011
The present study on the salivary glands of semi-engorged Amblyomma cajennense females has identified the various cell types present in this tissue and allowed its morphohistochemical characterization. Marking techniques were applied to detect polysaccharides (PAS), proteins (bromophenol blue), lipids (Nile blue) and calcium (von Kossa), as well as ...
Denardi, Sandra Eloisi +3 more
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The present study on the salivary glands of semi-engorged Amblyomma cajennense females has identified the various cell types present in this tissue and allowed its morphohistochemical characterization. Marking techniques were applied to detect polysaccharides (PAS), proteins (bromophenol blue), lipids (Nile blue) and calcium (von Kossa), as well as ...
Denardi, Sandra Eloisi +3 more
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Natural Infection of the Tick, Amblyomma Cajennense, with Rickettsia Rickettsii in Panama
The American Journal of Tropical Medicine and Hygiene, 1953The occurrence of Rocky Mountain spotted fever on the Isthmus of Panama was established for the first time in 1950 when a highly virulent strain of Rickettsia rickettsii was isolated by the author from the blood of a 26 year old Panamanian farmer who died February 8 of that year, shortly after admission to the hospital.
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Development of Resistance to Nymphs of Amblyomma cajennense Ticks (Acari:Ixodidae) in Dogs
Annals of the New York Academy of Sciences, 2002Abstract: Ticks have long been regarded as constraints to humans and domestic animals, but hosts often develop resistance to ticks after repeated infestations. The purpose of this investigation was to study the possible acquisition of immunity in domestic dogs to nymphs of A.
Luciana S, Mukai +3 more
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Acaricidal activity of thymol on larvae and nymphs of Amblyomma cajennense (Acari: Ixodidae)
Veterinary Parasitology, 2011The aim of the present study was to evaluate the acaricidal efficacy of thymol on unengorged and engorged larvae and engorged nymphs of Amblyomma cajennense. To perform the test for unengorged larvae, the larval packet technique was employed and mortality was evaluated 24h after the test, while for engorged larvae and engorged nymphs the immersion ...
Andressa da Silva, Mendes +5 more
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Veterinary Parasitology, 2002
The objective of this study was to investigate some aspects of horse resistance to natural infestations of Anocentor nitens and Amblyomma cajennense over a 2-year period. Free-living stages of A. nitens were used to evaluate the influence of season of the year on horse resistance.
L M F, Borges +3 more
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The objective of this study was to investigate some aspects of horse resistance to natural infestations of Anocentor nitens and Amblyomma cajennense over a 2-year period. Free-living stages of A. nitens were used to evaluate the influence of season of the year on horse resistance.
L M F, Borges +3 more
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Journal of Medical Entomology, 1998
A Encephalitozoon-like microsporidia was found in epithelial cells of the midgut and the salivary glands of Amblyomma cajennense (F.) and Anocentor nitens (Neumann) that had fed on rabbits. Ultrastructural studies demonstrated that all stages of the life cycle of the parasite occur in parasitophorous vacuoles and contain only 1 nucleus.
M F, Ribeiro, A M, Guimarães
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A Encephalitozoon-like microsporidia was found in epithelial cells of the midgut and the salivary glands of Amblyomma cajennense (F.) and Anocentor nitens (Neumann) that had fed on rabbits. Ultrastructural studies demonstrated that all stages of the life cycle of the parasite occur in parasitophorous vacuoles and contain only 1 nucleus.
M F, Ribeiro, A M, Guimarães
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Hypersensitivity Induced in Dogs by Nymphal Extract of Amblyomma cajennense Ticks (Acari:Ixodidae)
Annals of the New York Academy of Sciences, 2002Abstract: In general, hosts develop resistance to ticks after repeated infestations; nevertheless, several studies on naturally occurring host‐tick interactions were unable to detect resistance of hosts to ticks even after repeated infestations. The purpose of this investigation was to study the type of cutaneous hypersensitivity to unfed nymphal ...
Mukai, Luciana S. +3 more
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Experimental Transmission of Q Fever by Amblyomma Cajennense
The American Journal of Tropical Medicine and Hygiene, 1949Since Davis and Cox (1) first isolated the causative agent of Q fever from Dermacentor andersoni, several species of ticks have been incriminated in the epidemiology of this disease in various parts of the world. Investigations implicating the following species were reviewed by Kohls in 1948 (2): in Australia, Haemaphysalis humerosa and H.
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Cayenne Tick, Amblyomma cajennense Fabricius (Ixodida: Ixodidae)
2008Beata Gabrys +97 more
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