| spotted fever group rickettsiae or borrelia burgdorferi in ixodes cookei (ixodidae) in connecticut. | immatures and females of ixodes cookei, a hard-bodied tick, were collected from woodchucks and other mammals in the northeastern united states and examined for spotted fever group rickettsiae and borrelia burgdorferi. of the 93 nymphs analyzed by a hemolymph test, 4 (4.3%) harbored rickettsiae. six (15%) of 40 females were also infected. all infected ticks were collected from woodchucks in connecticut. indirect fluorescent antibody staining of midgut tissues from 128 nymphs revealed b. burgdorfe ... | 1991 | 1885748 |