1. Bozeman, F. M., Masiello, S. A., Williams, M. S., Elisberg, B. L. 1975. Epidemic typhus rickettsiae isolated from flying squirrels. Nature255:545–547.
2. Bozeman, F. M., Williams, M. S., Stocks, N. I., Chadwick, D. P., Elisberg, B. L., Sonenshine, D. E., Laver, D. M. 1978. Ecologic studies on epidemic typhus infection in the eastern flying squirrel, pp. 493–504. In: Kazar, J., Ormsbee, R. A., Tarasevich, I. N. (eds.), Rickettsiae and rickettsial diseases: Proceedings of the 2nd International Symposium on Rickettsiae and Rickettsial Diseases, Smolenice, June 21–25, 1976. Bratislava: Publishing House of Slovak Academy of Sciences.
3. Clavero, G., Perez, G. F. 1943. Estudio experimental de una cepa apatogena e immunizante deRickettsia prowazekii Cepa E. Revista de Sanidad e Higiene Publica17:1–27.
4. Dasch, G. A., Samms, J. R., Weiss, E. 1978. Biochemical characterization of typhus group rickettsiae with special attention to theRickettsia prowazekii strains isolated from flying squirrels. Infection and Immunity19:676–685.
5. Esposito, J., Condit, R., Obijeski, J. 1981. Preparation of orthopoxvirus DNA. Journal of Virological Methods2:175–179.