Results 41 to 50 of about 847 (159)
Modeling Potential Habitat for Amblyomma Tick Species in California
The Amblyomma genus of ticks comprises species that are aggressive human biters and vectors of pathogens. Numerous species in the genus are undergoing rapid range expansion.
Emily L. Pascoe +3 more
doaj +1 more source
We herein describe the ambush behavior of Amblyomma sculptum (Berlese 1888), a widespread and epidemiologically important tick in Brazil. Along two years of sampling by visual search in the Brazilian Pantanal, A. sculptum ticks were observed on the vegetation and in the leaf litter. Most of the ticks were observed between 10 and 50cm above ground level
Vanessa do Nascimento, Ramos +3 more
openaire +2 more sources
ABSTRACT Tick saliva is known to cause immunosuppression and help pathogen transmission. Amblyomma sculptum is a public health concern as a vector of Rickettsia rickettsii. Another close‐related species is Amblyomma cajennense sensu stricto (s.s.). The impact of saliva from these species on murine macrophages remains unclear.
André de Abreu Rangel Aguirre +9 more
wiley +1 more source
Devido a uma suspeita de Doença de Lyme-símile em humano, na região de Goiatins, Tocantins, foi realizada uma investigação epidemiológica em oito localidades dessa região, em setembro de 2007 e fevereiro de 2008, onde foram coletados 1.890 carrapatos de ...
Thiago F. Martins +5 more
doaj +1 more source
Cross-reactivity between antigens from Amblyomma cajennense and A. hebraeum (Acari : Ixodidae)
Laboratory animals exposed to feeding ticks develop resistance which is reflected by a decline in tick engorgement weight, egg-laying by adults and reduced egg viability. Serum antibodies from these hosts and their reaction with tick antigens have been detected by different methods, including precipitation techniques, immunofluorescent techniques ...
Hlatshwayo, M. +3 more
openaire +4 more sources
Rickettsia spp. and Anaplasmataceae in Ticks From Domestic Animals in Northern Colombia
ABSTRACT Introduction Tick‐borne diseases have a significant impact on public and animal health and represent a considerable financial burden on livestock farming. However, in many regions of Latin America, comprehensive epidemiological data, including species identification, geographical distribution and molecular profiling of ticks and their ...
Maria Badillo‐Viloria +9 more
wiley +1 more source
GRAPHICAL ABSTRACT ✓ Bovine anaplasmosis is a major tick‐borne disease affecting cattle herds. ✓ The global prevalence of Anaplasma phagocytophilum in cattle was 8.5%. ✓ Mongolia and Guatemala were countries accounted for the highest prevalence. ✓ Anaplasma phagocytophilum was most prevalent in cattle African region and Hot‐summer Mediterranean climate.
Amir Abdoli +8 more
wiley +1 more source
Chelicerae de Amblyomma cajennense foram examinados em microscopia de varredura. Esta técnica mostrou detalhes não evidenciáveis ao poder de resolução do microscópio ótico.
M. Ansel, M. Thibaut
doaj +1 more source
Artificial feeding of Amblyomma cajennense (Acari: Ixodidae) fasting females through capillary tube technique [PDF]
The present study aimed to adjust the artificial feeding technique through capillaries and to verify its influence over the biology of Amblyomma cajennense females. Five groups of 20 female ticks were formed. Females were starved for 45 days and then fed with citrated bovine blood using capillary tubes in different periods of time. Females were divided
Abel, Isis +5 more
openaire +4 more sources
Structural basis of chemokine recognition by the class A3 tick evasin EVA‐ACA1001
Abstract Ticks produce chemokine‐binding proteins, known as evasins, in their saliva to subvert the host's immune response. Evasins bind to chemokines and thereby inhibit the activation of their cognate chemokine receptors, thus suppressing leukocyte recruitment and inflammation.
Shankar Raj Devkota +5 more
wiley +1 more source

