[Today's threat of rickettsioses].

Rickettsioses are infectious diseases transmitted to human by arthropodes, characterized by different clinical manifestation, from subclinical symptoms, through the mild virus-like infection to severe disease with multiorgan complications. Rickettsiosis include typhus, spotted fevers, anaplasmosis, bartonellosis and Q fever. In some of these diseases respiratory symptoms predominate (i.e. acute Q fever), where as one do not occure in the others at all. Rickettsiosis treatment is based usually on the use of tetracycline antibiotics.