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Parasites and Conservation Biology
Published in Eric S. Loker, Bruce V. Hofkin, Parasitology, 2023
Eric S. Loker, Bruce V. Hofkin
With respect to parasitic eukaryotes, one remarkable colonizer of wild host species is the common cat flea, Ctenocephalides felis (see Figure 6.5). Over 130 species of wild mammals representing a broad phylogenetic spectrum harbor this flea species, nearly 20% of all the species sampled. Ecological fitting, a process whereby an organism possessing particular suites of attributes can colonize, exploit and persist in a novel environment, seems to apply to the cat flea, attributes we generally associate with “generalist parasites” capable of undergoing shifts to new and possibly unrelated host species. Feral dogs and cats and introduced species like black or brown rats or red foxes seem to play an important intermediary role in the transfer of this ectoparasite from domestic to wild mammals. By contrast, the common dog flea, Ctenocephalides canis, has been found on only 31 different mammal species, mostly restricted to canids, felids and mustelids.
“Omics” Technologies in Vaccine Research
Published in Mesut Karahan, Synthetic Peptide Vaccine Models, 2021
In order to identify candidate antigens from Ctenocephalides felis for vaccine development against cat flea, transcriptomics data were evaluated from unfed adult fleas. RNA-seq analysis produced 59,558 transcripts and 11,627 unigenes, of which 1620 unigenes were predicted in the exoproteome, 177 of them encoding proteins with transmembrane regions or signal peptides. The gene ontology (GO) analysis of these unigenes showed that 96% of the proteins belonged to cell membrane or extracellular space. Among them, six proteins were selected as candidate antigens, combining with proteomics data (Contreras et al. 2018).
Biting insect and tick allergens
Published in Richard F. Lockey, Dennis K. Ledford, Allergens and Allergen Immunotherapy, 2020
Donald R. Hoffman, Jennifer E. Fergeson
The fleas are almost all parasitic insects, with 74% of species associated with rodent hosts and about 6% with avian hosts. The species associated with man are members of the superfamily Pulicoidea, family Pulicidae. The most common are the dog and cat fleas, Ctenocephalides canis and Ctenocephalides felis felis. Pulex irritans, a parasite of carnivores, is sometimes called the human flea. Fleas of the genus Tunga are found in Central and South America.
Cat Scratch Disease: Not a Benign Condition
Published in Ocular Immunology and Inflammation, 2018
Sandra Barros, Gabriel Costa de Andrade, Cecilia Cavalcanti, Heloisa Nascimento
Bartonela henselae has been demonstrated to be the principal cause of CSD; however, other agents have also been reported such as Bartonella quintana, Bartonella grahamii, and Bartonella elizabethae,4,5 especially in atypical disease or when serology is negative. It is transmitted to humans through a cat scratch, cat bite, cat saliva, or cat flea bite (mainly Ctenocephalides felis) although Ixodes ricinus plays a major role in Western Europe.6–8
Neuroretinitis Secondary to Bartonella Henselae in a Patient with Myelinated Retinal Nerve Fibers: Diagnostic Dilemmas and Treatment
Published in Ocular Immunology and Inflammation, 2019
Victoria Toumanidou, Anna Dastiridou, Nikolaos Kourtis, Sofia Androudi
Cat-scratch disease (CSD) is a zoonotic infection caused by Bartonella henselae (BH) that exhibits a worldwide spread.1 The transmission of BH from cats to humans frequently occurs through scratches, bites, or licks from infected cats and probably from the bite of an arthropod vector, Ctenocephalides felis, the cat flea.2