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Open AccessBrief Report

Transstadial Transmission from Nymph to Adult of Coxiella burnetii by Naturally Infected Hyalomma lusitanicum

1
Villamagna S.A., Finca ‘‘La Garganta’’, 14440 Villanueva de Córdoba, Spain
2
Center for Vector Biology, Department of Entomology, Rutgers University, New Brunswick, NJ 08901, USA
3
Grupo de Parasitología Animal, Animalario del Departamento de Reproducción Animal, INIA, 28040 Madrid, Spain
4
Bee Pathology laboratory, Centro Apícola Regional, JCCM, 19180 Marchamalo, Spain
5
Departamento de Sanidad Animal, Facultad de Veterinaria, UCM, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Pathogens 2020, 9(11), 884; https://doi.org/10.3390/pathogens9110884
Received: 5 October 2020 / Revised: 21 October 2020 / Accepted: 23 October 2020 / Published: 25 October 2020
(This article belongs to the Section Animal Pathogens)
Coxiella burnetii (Derrick) Philip, the causative agent of Q fever, is mainly transmitted by aerosols, but ticks can also be a source of infection. Transstadial and transovarial transmission of C. burnetii by Hyalomma lusitanicum (Koch) has been suggested. There is a close relationship between this tick species, wild animals and C. burnetii but the transmission in a natural environment has not been demonstrated. In this study, we collected 80 engorged nymphs of H. lusitanicum from red deer and wild rabbits. They moult to adults under laboratory conditions and we feed them artificially through silicone membranes after a preconditioning period. C. burnetii DNA was tested in ticks, blood and faeces samples using real-time PCR. The pathogen was found in 36.2% of fed adults, demonstrating that transstadial transmission from nymph to adult occurs in nature. The presence of DNA in the 60.0% of blood samples after artificial feeding confirms that adults transmit the bacteria during feeding. Further studies are needed about co-feeding and other possible transmission routes to define the role of this tick species in the cycle of C. burnetii. View Full-Text
Keywords: Q fever; tick; meso-Mediterranean; transstadial transmission; artificial feeding Q fever; tick; meso-Mediterranean; transstadial transmission; artificial feeding
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MDPI and ACS Style

González, J.; González, M.G.; Valcárcel, F.; Sánchez, M.; Martín-Hernández, R.; Tercero, J.M.; Olmeda, A.S. Transstadial Transmission from Nymph to Adult of Coxiella burnetii by Naturally Infected Hyalomma lusitanicum. Pathogens 2020, 9, 884. https://doi.org/10.3390/pathogens9110884

AMA Style

González J, González MG, Valcárcel F, Sánchez M, Martín-Hernández R, Tercero JM, Olmeda AS. Transstadial Transmission from Nymph to Adult of Coxiella burnetii by Naturally Infected Hyalomma lusitanicum. Pathogens. 2020; 9(11):884. https://doi.org/10.3390/pathogens9110884

Chicago/Turabian Style

González, Julia; González, Marta G.; Valcárcel, Félix; Sánchez, María; Martín-Hernández, Raquel; Tercero, José M.; Olmeda, A. S. 2020. "Transstadial Transmission from Nymph to Adult of Coxiella burnetii by Naturally Infected Hyalomma lusitanicum" Pathogens 9, no. 11: 884. https://doi.org/10.3390/pathogens9110884

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