Suspected Rocky Mountain spotted fever in the winter--epidemic typhus?

@article{Kaplan1981SuspectedRM,
  title={Suspected Rocky Mountain spotted fever in the winter--epidemic typhus?},
  author={Jonathan E. Kaplan and Joseph McDade and V F Newhouse},
  journal={The New England journal of medicine},
  year={1981},
  volume={305 27},
  pages={1648}
}