Results 61 to 70 of about 3,183 (248)

Ocorrência de carrapatos (Acari: Ixodidae) no município de Goiatins, Tocantins Occurrence of ticks (Acari: Ixodidae) in the municipality of Goiatins, Tocantins

open access: yesRevista Brasileira de Parasitologia Veterinária, 2009
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

Global Prevalence of Anaplasma phagocytophilum in Cattle: A One Health Perspective, Meta‐Analysis and Future Predictions (up to 2035)

open access: yesVeterinary Medicine and Science, Volume 11, Issue 2, March 2025.
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

Cross-reactivity between antigens from Amblyomma cajennense and A. hebraeum (Acari : Ixodidae)

open access: yesJournal of the South African Veterinary Association, 2004
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

Structural basis of chemokine recognition by the class A3 tick evasin EVA‐ACA1001

open access: yesProtein Science, Volume 33, Issue 6, June 2024.
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

Espécies de carrapatos relatadas no Estado de Mato Grosso do Sul. [PDF]

open access: yes, 2012
Carrapatos são ectoparasitos do filo Arthropoda, classe Arachnida, ordem Acari e subordem Ixodida. Parasitam a grande maioria dos animais vertebrados e apresentam uma ampla distribuição geográfica.
ALMEIDA, R. F. C. de   +4 more
core   +1 more source

A meta-analysis of host specificity in Neotropical hard ticks (Acari: Ixodidae) [PDF]

open access: yes, 2013
Host specificity of Neotropical hard ticks (Acari: Ixodidae) was analyzed by using the number of hosts species for each tick species and the index of host specificity STD*, which integrates phylogenetic and ecological information. The analyses were based
A.A. Guglielmone   +18 more
core   +2 more sources

Study of chelicerae in the tick Amblyomma cajennense (Fabricius 1787) by scanning electron microscopy

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1975
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

Tick bites, IgE to galactose‐alpha‐1,3‐galactose and urticarial or anaphylactic reactions to mammalian meat: The alpha‐gal syndrome

open access: yesAllergy, Volume 79, Issue 6, Page 1440-1454, June 2024.
Abstract The recent recognition of a syndrome of tick‐acquired mammalian meat allergy has transformed the previously held view that mammalian meat is an uncommon allergen. The syndrome, mediated by IgE antibodies against the oligosaccharide galactose‐alpha‐1,3‐galactose (alpha‐gal), can also involve reactions to visceral organs, dairy, gelatin and ...
Jeffrey M. Wilson   +5 more
wiley   +1 more source

Artificial feeding of Amblyomma cajennense (Acari: Ixodidae) fasting females through capillary tube technique [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária, 2008
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

Importância dos carrapatos na transmissão da febre maculosa brasileira. [PDF]

open access: yes, 2012
Introdução. Agente etiológico. Principal vetor no Brasil. Outras espécies de carrapatos de importância. Animais amplificadores. Epidemiologia. Manifestações clínicas. Diagnóstico. Tratamento.
ALMEIDA, R. F. C. de   +4 more
core  

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