Statistics from the public health department1 given in the accompanying table show that prior to the positive identification of Rocky Mountain spotted fever in the East by Badger, Dyer and Rumreich2 in 1931 only three cases had been reported east of the Mississippi River, one in Indiana (1925), one in New York (1925) and one in Norfolk, Va. (1926). The frequency of recognition of the disease in the Eastern states has steadily increased, however, in the last decade. We know of eight cases in the region of Philadelphia in the last two years, and an outbreak occurred in southern New Jersey in the spring of 1937. This continued recurrence of the disease in our vicinity, as well as reports from other eastern localities, has impressed us with the fact that the disease is established permanently in the East. Some authorities3 have stated that the disease has been
CAREY LS, DUNCAN GG. ROCKY MOUNTAIN SPOTTED FEVER IN THE EAST: REPORT OF A CASE. JAMA. 1938;110(3):175–177. doi:10.1001/jama.1938.02790030009002
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