Rates of Borrelia burgdorferi infection in Ixodes dammini (Acari: Ixodidae) in southwestern Wisconsin.
Ixodes dammini Spielman, Clifford, Piesman & Corwin collected from a study site in southwestern Wisconsin were examined for Borrelia burgdorferi infection. Adult spirochete infection rates varied seasonally (38.1%, spring 1990; 60.3%, fall 1990; 41.2%, spring 1991) and were similar to or higher than rates reported in various studies from the northeastern United States. Statistical comparison of seasonal infection rates indicated a significant difference between the fall 1990 adult population and the subsequent overwintered population of the same cohort (spring 1991). Additionally, a significant decrease in the intensity of spirochete infection was observed in the overwintered adult sample.
Sharon
M D
MD
Department of Entomology, Iowa State University, Ames 50011.
Rowley
W A
WA
Novak
M G
MG
Platt
K B
KB
D000818:Animals; D001096:Arachnid Vectors / Q000382:microbiology*; D015748:Borrelia burgdorferi Group / Q000302:isolation & purification*; D005260:Female; D008193:Lyme Disease / Q000635:transmission; D008297:Male; D009758:Nymph / Q000382:microbiology; D012621:Seasons; D013987:Ticks / Q000382:microbiology*; D014922:Wisconsin