Person:
Olmeda García, Ángeles Sonia

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First Name
Ángeles Sonia
Last Name
Olmeda García
URI
https://hdl.handle.net/20.500.14352/80371
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Sanidad Animal
Area
Sanidad Animal
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2020 - 20213
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Author: González, Marta G. × Start date: 2020 ×

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Now showing 1 - 3 of 3
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    Acaricidal and Repellent Effects of Essential Oils against Ticks: A Review
    (Pathogens, 2021) Selles, Sidi Mohammed Ammar; Kouidri, Mokhtaria; González, Marta G.; González, Julia; Sánchez, María; González Coloma, Azucena; Sanchis, Jaime; Elhachimi, Latifa; Olmeda García, Ángeles Sonia; Tercero, José Maria; Valcárcel, Félix
    Tick control is a priority in order to prevent the transmission of vector-borne diseases. Industrial chemical acaricides and repellents have been the most efficient tools against hard ticks for a long time. However, the appearance of resistances has meant the declining effectiveness of the chemicals available on the market. The trend today is to develop alternative control methods using natural products to replace nonefficient pesticides and to preserve the efficient ones, hoping to delay resistance development. Traditional in vitro evaluation of acaricidal activity or resistance to synthetic pesticides have been reviewed and they mainly focus on just one species, the one host tick (Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)). Recent reports have called for the standardization of natural product components, extraction techniques, and experimental design to fully discover their acaricidal potential. This study reviews the main variables used in the bibliography about the efficiency of natural products against ticks, and it proposes a unification of variables relating to ticks, practical development of bioassays, and estimation of ixodicidal activity.
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    Comparative Ecology of Hyalomma lusitanicum and Hyalomma marginatum Koch, 1844 (Acarina: Ixodidae)
    (Insects, 2020) Valcárcel, Félix; González, Julia; González, Marta G.; Sánchez, María; Tercero, José María; Elhachimi, Latifa; Carbonell Bonelo, Juan David; Olmeda García, Ángeles Sonia
    The genus Hyalomma belongs to the Ixodidae family and includes many tick species. Most species in this genus are African species, but two of them, Hyalomma lusitanicum and Hyalomma marginatum, are also found in Europe and, owing to their morphological similarity, it is very difficult to tell them apart. This is a major concern because their phenology and vector capacities are quite different. Moreover, they share many habitats and both are currently spreading to new areas, probably due to climate change and animal/human movements. In this study, we review the described ecology of the two species and provide further interesting data on H. lusitanicum based on the authors’ experience, which could be useful in assessing the risk they pose to humans and animals.
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    Seasonality of Coxiella burnetii among Wild Rabbits (Oryctolagus cuniculus) and the Hyalomma lusitanicum (Acari: Ixodidae) in a Meso-Mediterranean Ecosystem
    (Pathogens, 2021) Sánchez, María; Valcárcel, Félix; González, Julia; González, Marta G.; Martín Hernández, Raquel; Tercero, José M.; González Jara, Pablo; Olmeda García, Ángeles Sonia
    (1) Background: Q fever is a worldwide zoonosis caused by Coxiella burnetii that have cases reported in humans and animals almost everywhere. The aim of this study was to describe the seasonality of Coxiella burnetii in the wild rabbit (Oryctolagus cuniculus) and the tick Hyalomma lusitanicum in a meso-Mediterranean ecosystem. (2) Methods: two populations of wild rabbits that differ in whether or not they share habitat with ungulates, mainly red deer (Cervus elaphus) were sampled for a year to collect ticks, blood and vaginal or anal swabs. Presence of C. burnetii DNA in swabs and the tick H. lusitanicum was determined by PCR and serum antibodies by ELISA. (3) Results: C. burnetii DNA was detected in 47.2% of 583 rabbits, in 65.5% of sera, and in more than half of the H. lusitanicum. There were small variations according to sex and age of the rabbits but significant according to the habitat (4) Conclusions: The results indicate that C. burnetii circulates freely between wild rabbits and H. lusitanicum and the sylvatic cycle in meso-Mediterranean environments relies in the presence of wild rabbits and H. lusitanicum above all if sharing habitat with red deer.