A New Tick-borne Disease on the Horizon in Arizona
In the last two years, the tick-borne disease Rickettsia parkeri rickettsiosis (R. parkeri) has been identified in two Arizona residents. Both were bitten by ticks in the mountainous regions of Southern Arizona. Only 40 cases of R. parkeri have been reported in the United States since the disease was first recognized in 2004. The tick responsible for the Arizona cases [...]