TY - JOUR AU1 - Long, Perrin H. AU2 - Cornwell, Agnes M. AB - PER R I N H. LON G AND A G N E S M. COR N W ELL From the South Departm.ent and Thorndike Memorial Laboratory} Boston City Hospital Recently Ferry and Fisher 1 have described a small, gram-positive, aerobic, green producing streptococcus which they isolated from the blood of measles patients in the early stages of the disease. In obtaining this organism 10 cc. of blood were added to flasks of Hibler medium and any resulting growth was plated on sheep's-blood agar. They state that this organism forms a soluble toxin, which on injection into horses or rabbits is capable of producing an immune serum showing antitoxic properties. Further, by using proper dilutions of the toxin, they have elaborated a skin test similar to the Schick test and Dick test, which can be used in determining individual susceptibility to measles. In a series of papers published between 1918 and 1926 Tunnicliff 2 and her associates describe a gram-positive micrococcus which they believe to be the etiologic factor of measles. This organism, which can be cultivated only under strict anaerobic conditions in the first generation, grows, when transplanted upon suitable mediums, as an aerobic greenĀ­ producing diplococcus or short TI - Observations on the Etiology of Measles JF - The Journal of Infectious Diseases DO - 10.1093/infdis/40.3.408 DA - 1927-03-01 UR - https://www.deepdyve.com/lp/oxford-university-press/observations-on-the-etiology-of-measles-3nYdXtSWc7 SP - 408 EP - 411 VL - 40 IS - 3 DP - DeepDyve ER -