Rhipicephalus sanguineus sensu lato(Ixodidae) in synantropic rodents in Rio Grande do Sul, Brazil

Abstract

Rhipicephalus sanguineus, the brown dog tick, is responsible for maintaining and transmitting various pathogens, both in animals and human beings, and it is of great sanitary importance. This communication reports the first occurrence of Rhipicephalus sanguineus sensu lato parasitizing Rattus norvegicus in the state of Rio Grande do Sul, Brazil, and it is also the first record of this tick species parasitizing Rattus rattus in Brazil. The rodents were captured from the port area, located in the city of Pelotas, Rio Grande do Sul, Brazil. We collected 6 larvae of this tick species from 2 male R. rattus individuals, and 3 larvae from 2 female R. norvegicus individuals; parasitized specimens of both rodent species were captured from different sites within the experimental area. This record broadens the number of Rhipicephalus sanguineus sensu lato hosts in urban areas, indicating the need for continued monitoring on population density for both R. sanguineus and synanthropic rodents.Keywords: Tick, Rhipicephalus sanguineus, Rattus norvegicus, Rattus rattus. ResumoRhipicephalus sanguineus, carrapato-vermelho-do-cão, é responsável por manter e transmitir diversos patógenos tanto para animais quanto para o homem, sendo de grande importância sanitária. Essa comunicação relata a primeira ocorrência de Rhipicephalus sanguineus sensu lato parasitando Rattus norvegicus no Estado do Rio Grande do Sul e, pela primeira vez, Rattus rattus no Brasil. Os roedores foram capturados na área portuária da cidade de Pelotas, Rio Grande do Sul, Brasil. Foram coletadas seis larvas desse carrapato em dois machos de R. rattus e três larvas em duas fêmeas de R. norvegicus. As duas espécies de roedores parasitados foram capturadas em pontos distintos na área do experimento. Esse registro amplia o número de hospedeiros de Rhipicephalus sanguineus sensu lato em áreas urbanas, indicando a necessidade de monitoramento contínuo da densidade populacional, tanto de R. sanguineus quanto de roedores sinantrópicos.

Management Options for Ixodes ricinus-Associated Pathogens: A Review of Prevention Strategies

“…For example, city parks have been shown to support high tick densities as well as high prevalence of tick-borne pathogens [113]. Additionally, synanthropic animals have been shown to be in frequent contact with TBPs and could thereby potentially serve as reservoirs of these diseases in urban settings where ticks are also present [114]. Nothing is known about tick activity on brownfields and other abandoned postindustrial localities, which are also part of urban landscape.…”

First report of ectoparasites from black rats (Rattus rattus Linnaeus, 1758) in oasis regions from Algeria

“…Furthermore, other studies notified the presence of the other species on Rattus spp. (Roberts, 1991;Abd El-Halim et al, 2009;Bahget, 2013;Winkel et al, 2014). Moreover, Dermanyssus spp.…”

Identification Antigenic Protein of Larva Rhipicephalus Sanguineus By Western Blot Technique and Humoral Immune Response In Rabbits Immunized Protein Larvae Of Rhipicephalus Sanguineus

“…During their life cycles they are mostly found in the surrounding environment where the dogs mostly spend, that causes reinfestation. Cases of acaricide resistance have increased tick population (Winkel, 2014). An alternative method in controlling R. sanguineus tick is the use of vaccine.…”