Widespread, simultaneous increase in the incidence of spotted fever group rickettsioses.
D006801:Humans; D007557:Israel; D007558:Italy; D012282:Rickettsia Infections / Q000453:epidemiology*; D012373:Rocky Mountain Spotted Fever / Q000453:epidemiology*; D013030:Spain; D013987:Ticks / Q000382:microbiology; D014481:United States