Tick-borne illnesses are reported increasing often. Unlike Lyme diseas
e, which tends to be indolent, Rocky Mountain spotted fever and ehrlic
hiosis can kill and so must be recognized and treated promptly. These
diseases require clinical diagnosis, because laboratory confirmation w
ith antibody tests takes too long. Tetracycline hydrochloride, doxycyc
line (Doryx, Vibramycin), or chloramphenicol (Chloromycetin) treatment
is effective. Other diseases (eg, babesiosis, tularemia) are encounte
red occasionally and can also be fatal but are treatable with antibiot
ics.