Results 1 to 10 of about 539 (129)

Exploring the transcriptome of immature stages of Ornithodoros hermsi, the soft-tick vector of tick-borne relapsing fever [PDF]

Scientific Reports
Blood-feeding behavior has independently evolved in arthropods multiple times. Unlike hard ticks, soft ticks employ a rapid-feeding strategy for hematophagy, and there are comparatively limited studies on the transcriptomes of these organisms. This study
Lucas C. de Sousa-Paula, Markus Berger, Octavio A. C. Talyuli, Cindi L. Schwartz, Greg A. Saturday, José M. C. Ribeiro, Lucas Tirloni   +6 more
doaj   +4 more sources

Ornithodoros sonrai Soft Ticks and Associated Bacteria in Senegal [PDF]

Pathogens, 2023
The soft ticks, Ornithodoros sonrai, are known as vectors of the tick-borne relapsing fever caused by Borrelia spp. and have also been reported to carry other micro-organisms. The objective of this study was to collect and to identify O. sonrai ticks and
El Hadji Ibrahima Ndiaye, Adama Zan Diarra, Fatou Samba Diouf, Charles Bouganali, Lionel Almeras, Cheikh Sokhna, Georges Diatta, Philippe Parola   +7 more
doaj   +5 more sources

African Swine Fever Virus DNA in Soft Ticks, Senegal [PDF]

Emerging Infectious Diseases, 2007
African swine fever is a highly contagious disease of pigs in Africa. Although its persistence in Senegal may be caused by asymptomatic carriers involved in the domestic transmission cycle, we demonstrated that the soft tick Ornithodoros sonrai can be ...
Laurence Vial, Barbara Wieland, Ferran Jori, Eric Etter, Linda Dixon, François Roger   +5 more
doaj   +6 more sources

On the haem auxotrophy of the soft tick Ornithodoros moubata

Ticks and Tick-borne Diseases, 2023
Genomes of ticks display reductions, to various extents, in genetic coding for enzymes of the haem biosynthetic pathway. Here, we mined available transcriptomes of soft tick species and identified transcripts encoding only half of the enzymes involved in haem biosynthesis.
Tereza Hatalová, Jan Erhart, Petr Kopáček, Jan Perner   +3 more
openalex   +3 more sources

Development of vaccines against Ornithodoros soft ticks: An update [PDF]

Ticks and Tick-borne Diseases, 2015
Ticks are parasites of great medical and veterinary importance since they are vectors of numerous pathogens that affect humans, livestock and pets. Among the argasids, several species of the genus Ornithodoros transmit serious diseases such as tick-borne human relapsing fever (TBRF) and African Swine Fever (ASF).
Verónica Díaz-Martín, Raúl Manzano-Román, Prosper Obolo-Mvoulouga, Ana Oleaga, Ricardo Pérez‐Sánchez   +4 more
openalex   +4 more sources

Soft Tick Relapsing Fever — United States, 2012–2021 [PDF]

MMWR. Morbidity and Mortality Weekly Report, 2023
Soft tick relapsing fever (STRF) (also known as tickborne relapsing fever) is a rare infection caused by certain Borrelia spirochetes and transmitted to humans by soft-bodied Ornithodoros ticks. In the United States, acquisition of STRF is commonly associated with exposure to rustic cabins, camping, and caves.
Amy Beeson, Anne M. Kjemtrup, Hanna N. Oltean, Hannah Schnitzler, Heather Venkat, Irene Ruberto, Natalie S. Marzec, Devon Cozart, Leslie Tengelsen, Stephen Ladd-Wilson, Hannah Rettler, Bonny Mayes, Kelly Broussard, Ali Garcia, Lisa L. Drake, Elizabeth A. Dietrich, Jeannine M. Petersen, Alison F. Hinckley, Kiersten J. Kugeler, Grace E. Marx   +19 more
openalex   +3 more sources

Identification of a rickettsial endosymbiont in a soft tick Ornithodoros turicata americanus

PLoS ONE, 2022
Bacterial endosymbionts are abundantly found in both hard and soft ticks. Occidentia massiliensis, a rickettsial endosymbiont, was first identified in the soft tick Ornithodoros sonrai collected from Senegal and later was identified in a hard tick ...
Lichao Liu, Daniel E. Sonenshine, Hameeda Sultana, Girish Neelakanta   +3 more
doaj   +5 more sources

Soft ticks perform evaporative cooling during blood-feeding [PDF]

Journal of Insect Physiology, 2020
AbstractFeeding on the blood of warm-blooded vertebrates is associated to thermal stress in haematophagous arthropods. It has been demonstrated that blood-sucking insects protect their physiological integrity either by synthesising heat-shock proteins or by means of thermoregulatory mechanisms.
Cláudio R. Lazzari, Aurélie Fauquet, Chloé Lahondère, Ricardo N. Araújo, Marcos H. Pereira   +4 more
openalex   +6 more sources

An insight into the sialome of the soft tick, Ornithodorus parkeri [PDF]

Insect Biochemistry and Molecular Biology, 2007
While hard ticks (Ixodidae) take several days to feed on their hosts, soft ticks (Argasidae) feed faster, usually taking less than 1h per meal. Saliva assists in the feeding process by providing a cocktail of anti-hemostatic, anti-inflammatory and immunomodullatory compounds. Saliva of hard ticks has been shown to contain several families of genes each
Ivo M.B. Francischetti, Ben J. Mans, Zhaojing Meng, Nanda P. Gudderra, Timothy D. Veenstra, Van My Pham, José M. C. Ribeiro   +6 more
openalex   +4 more sources

Cell lines from the soft tick Ornithodoros moubata [PDF]

Experimental and Applied Acarology, 2009
Primary cell cultures (n = 16) were initiated from tissues of embryonic and neonatal larval Ornithodoros moubata following methods developed for hard ticks. After maintenance for 20-25 months in vitro, cell multiplication commenced in surviving cultures, leading to the establishment of six cell lines designated OME/CTVM21, 22, 24, 25, 26 and 27.
Lesley Bell‐Sakyi, Daniel Růžek, Ernest A. Gould   +2 more
openalex   +6 more sources