Organisms of the genus Rickettsia occur throughout the world and are distributed among a
variety of hematophagous arthropod vectors, which include ticks, lice, mites, and fleas. 1, 2 …

The abundance and activity of ectoparasites and its hosts are affected by various abiotic
factors, such as climate and other organisms (predators, pathogens and competitors) …

Background Brazilian spotted fever (BSF), caused by the bacterium Rickettsia rickettsii, has
been associated with the transmission by the tick Amblyomma sculptum, and one of its main …

The genus Amblyomma is the third most diverse in the number of species within the
Ixodidae, with practically half of its species distributed in the Americas, though there are also …

Ticks transmit a greater diversity of viral, bacterial, and protozoan diseases than any other
arthropod vector on earth (Jongejan and Uilenberg, 2004; IOM, 2011). Through 2014, at …

This study was performed in Maranhão state, a transition area two Brazilian biomes,
Amazon and Cerrado. During 2011–2013, 1,560 domestic dogs were sampled for collection …

Brazilian spotted fever (BSF) is a tick-borne disease caused by the bacterium Rickettsia
rickettsii, the deadliest spotted fever of the world, transmitted in southeastern Brazil mainly …

Birds are important hosts for the development of the immature stages of several tick species
that are vectors for disease-causing microorganisms in animals and humans. Colombia has …

Rickettsia rickettsii is the agent of Brazilian spotted fever (BSF), the most lethal tick-borne
disease in the western hemisphere. Amblyomma sculptum is the main vector of R. rickettsii …

The importation of exotic ticks to Germany on infested humans is rarely reported. Here we
describe the detection of an Amblyomma mixtum nymph harboring Rickettsia amblyommatis …