During most of the 20th century, the epidemiology of tick-borne rickettsioses could be
summarized as the occurrence of a single pathogenic rickettsia on each continent. An …

Rocky Mountain spotted fever (RMSF) is a life-threatening disease caused by Rickettsia
rickettsii, an obligately intracellular bacterium that is spread to human beings by ticks. More …

Until the year 2000, only three Rickettsia species were known in South America:(i) Rickettsia
rickettsii, transmitted by the ticks Amblyomma cajennense, and Amblyomma aureolatum …

Several geopolitical factors, aggravated by worries of global warming, have been fueling the
search for and production of renewable energy worldwide for the past few years. Such …

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 …

Rickettsia are best known as strictly intracellular vector‐borne bacteria that cause mild to
severe diseases in humans and other animals. Recent advances in molecular tools and …

Companion vector-borne diseases (CVBDs) are an important threat for pet life, but may also
have an impact on human health, due to their often zoonotic character. The importance and …

This study evaluates the rickettsial presence in Amblyomma ticks from eight areas of the
Amazon forest in Rondônia, Brazil. The following tick species (number in parentheses) were …

Data on genus and infectious by Rickettsia were retrospectively compiled from the critical
review literature regarding all countries in Latin America, Caribbean islands, Portugal and …

New human rickettsial pathogens have been discovered, and long-known rickettsiae of
undetermined pathogenicity have been demonstrated to cause illness. Disease associated …