Volume 12, Number 7—July 2006

Infectious agents, often through complex systems, likely determine more chronic diseases than is currently appreciated.

Numerous tickborne viruses, including Dhori virus and foot-and-mouth disease virus, were isolated.

Patients showed seroconversion to rodent-associated Bartonella antigens, but not to Bartonella pathogenic for humans.

Birds host vector ticks and Borrelia species and vary in effectiveness as reservoirs.

Treating all communities within 1,500 m of a target community may reduce reinfestation risk.

First R. sibirica–related strain is detected.

Eschars can be used for genetic characterization of O. tsutsugamushi during the convalescent phase.