Fever of Unknown Origin FUO despite a high-quality workup after a reasonable amount of
time has elapsed to rule out self-limited fevers remains a challenge. The clinician must pay …

Dengue viruses have spread rapidly within countries and across regions in the past few
decades, resulting in an increased frequency of epidemics and severe dengue disease …

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 …

Background Typhoid fever and paratyphoid fever continue to be important causes of illness
and death, particularly among children and adolescents in south‐central and southeast …

Rationale for review Dengue is a frequent cause of febrile illness among travellers and has
overtaken malaria as the leading cause of febrile illness for those traveling to Southeast …

A laboratory diagnostic paradigm shift in rickettsial infections is evolving, with replacement of
indirect immunofluorescence assay by the more objective ELISA coupled with nucleic acid …

Tick borne relapsing fever (TBRF) is a zoonosis caused by various Borrelia species
transmitted to humans by both soft-bodied and (more recently recognized) hard-bodied ticks …

Background Etiological diagnosis of febrile illnesses in returning travelers is a great
challenge, particularly when presenting with no focal symptoms [acute undifferentiated …

Medical Considerations before International Travel | New England Journal of Medicine Skip to
main content The New England Journal of Medicine homepage Advanced Search SEARCH …

Approach to Fever in the Returning Traveler | New England Journal of Medicine Skip to main
content The New England Journal of Medicine homepage Advanced Search SEARCH …