جستجوی مقالات مرتبط با کلیدواژه "ctenocephalides felis" در نشریات گروه "پزشکی"

Fleas (Insecta: Siphonaptera) are considered as highly specialized bloodsucking on mammals such as dogs. The existence of three factors, namely a vast distribution area, different hosts, and digestive system with a specific mecha nism for digesting blood has led to species of fleas who nourish from mammals be introduced as the potential vectors of diseases. The aim of this study was to assess Leishmania infantum natural infection of dog fleas in northwest Iran in 2018.

A total of 20 infested domestic dogs (Canis lupus familiaris) were randomly selected from 5 villages. Fleas were collected using brushing against dog hairs and fine forceps. Then, they were morphologically identified and pre served in ethanol for molecular assay. The kinetoplast DNA of the parasite was used for detection of Leishmania infan tum using a semi-nested polymerase chain reaction (PCR) assay.

The human flea, Pulex irritans, and the cat flea, Ctenocephalides felis were identified on 40% and 35% of dogs, respectively. The results of PCR indicated that L. infantum was found in the Ctenocephalides canis (75%) and C. felis (66.7%) col lected from infected dogs. No leishmanial infection was observed in P. irritans.

It is concluded that fleas could be infected by Leishmania infantum, but maintenance of the parasite and their vectorial competence needs to be determined.

Rickettsia felis is an emergent Rickettsial agent whose main vector is Ctenocephalides felis, but ticks, mites and lice are also infected. We aimed to search for molecular evidence of Rickettsia spp. in fleas collected from dogs and wild rodents (Heteromys anomalous) from three villages of Córdoba and Antioquia provinces (Northern of Colombia), where outbreaks of rickettsioses have occurred, and discuss the possible role of fleas on endem ic/enzootic regions for rickettsia. During 2010 and 2012, 649 Ctenocephalides felis felis and 24 Pulex irritans fleas were removed from dogs and wild rodents (Heteromys anomalous), respectively, in 3 locations from Córdoba and Antioquia provinces (Colombia). These fleas were tested into pools for Rickettsial infection by PCR, targeting gltA, ompB, and ompA Rickettsial genes. Almost 20% (30/153) of C. felis felis pools contained Rickettsial DNA. The fragments of ompB gene showed high identity values between sequences from Necocli and Los Cordobas with R. felis strain from Senegal (100% and 99.7% respectively) and all were highly related by phylogenetic analyses. Rickettsial DNA in pools of P. irritans was not detected. Our findings highlighted the endemicity of the infection by R. felis in fleas from northern of Colombia and showed the likely importance of dogs as hosts of C. felis felis fleas and their potential role as reservoirs of R. felis.

Human infestation to ectoparasites such as ticks, lice, cimex, fleas, mites and others causes an intense allergic itching, skin infection and severe irritation. In this case report, we present a dermatitis case caused by cat flea. A three-member family referred to dermatology clinic in Babol due to dermal complications. They complained of irritation and the unrest caused by intense itching. Samples of tiny live insects were detected from their clothing recognized as C. felis (cat flea). This report highlights the importance of ectoparasites causing dermatitis.