Results 191 to 200 of about 10,174 (231)
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Acquired resistance of horses to Amblyomma cajennense (Fabricius, 1787) ticks
Veterinary Parasitology, 2003Acquired immunity of horses to larvae, nymphs and adults of the Amblyomma cajennense tick was evaluated through three consecutive experimental infestations of tick-bite naïve hosts. Data from these infestations were compared to those from field-sensitized horses and donkeys.
Castagnolli, K. C. +5 more
openaire +3 more sources
Amblyomma cajennense ticks induce immediate hypersensitivity in horses and donkeys
Experimental & Applied Acarology, 2004Since host immune reaction to ticks interferes with tick-borne pathogen transmission, it is important to recognize naturally occurring tick-host immune relationships to better understand the epidemiology of such infectious diseases. Amblyomma cajennense is an important tick-borne disease vector in the Neotropical region and horses maintain it in ...
Pablo Juan Szabó, Matias +4 more
openaire +3 more sources
Ticks and Tick-borne Diseases
In Colombia, there are few studies that describe tick parasitism in humans, as well as its demographic and ecological characteristics. Additionally, multiple cases of human rickettsiosis caused by highly pathogenic Rickettsia species have been reported ...
Omar Esteban Vargas-Martínez +6 more
semanticscholar +1 more source
In Colombia, there are few studies that describe tick parasitism in humans, as well as its demographic and ecological characteristics. Additionally, multiple cases of human rickettsiosis caused by highly pathogenic Rickettsia species have been reported ...
Omar Esteban Vargas-Martínez +6 more
semanticscholar +1 more source
Survival and Water-Balance Characteristics of Unfed Adult Amblyomma cajennense (Acari: Ixodidae)
Journal of Medical Entomology, 1996Off-host survival, water balance, and cold tolerance of unfed adult, Cayenne ticks, Amblyomma cajennense (F.), were examined to evaluate species characteristics important to zoogeography and off-host ecology. Survivorship decreased when males and females were subjected to progressively drier constant environmental conditions.
Pete D Teel +2 more
exaly +3 more sources
Journal of medical entomology
Ticks of the Amblyomma maculatum (Ixodida Ixodidae) complex, the Amblyomma cajennense (Ixodida Ixodidae) complex and Amblyomma ovale (Ixodida Ixodidae) are known to transmit various Rickettsia species in Colombia, but their exact distribution is unknown.
Gina Polo +4 more
semanticscholar +1 more source
Ticks of the Amblyomma maculatum (Ixodida Ixodidae) complex, the Amblyomma cajennense (Ixodida Ixodidae) complex and Amblyomma ovale (Ixodida Ixodidae) are known to transmit various Rickettsia species in Colombia, but their exact distribution is unknown.
Gina Polo +4 more
semanticscholar +1 more source
Seasonal dynamics of the Cayenne tick, Amblyomma cajennense on horses in Brazil
Medical and Veterinary Entomology, 2003Abstract. The population dynamics of all stages of the Cayenne tick, Amblyomma cajennense (Fabricius) (Acari: Ixodidae) on horses was evaluated over a period of 2 years in the district of Pedro Leopoldo, State of Minas Gerais, Brazil.
P R, Oliveira +3 more
openaire +2 more sources
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
openaire +3 more sources
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
openaire +3 more sources
Meteorological indicators for Amblyomma cajennense and population dynamics in the Tamaulipan Biotic Province in Texas [PDF]
Journal of Vector Ecology, 2011 We studied the population dynamics of free-living ticks in the Tamaulipan Biotic Province in south Texas from March, 2005 to November, 2008. We collected 70,873 ticks using carbon dioxide traps. Amblyomma cajennense represented 93.6% of the ticks identified. A.
David L Beck
exaly +3 more sources
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.
Antonio Marcos Guimarães +1 more
exaly +3 more sources
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.
Antonio Marcos Guimarães +1 more
exaly +3 more sources
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
openaire +2 more sources