1. Levy, A. L. (1946)Yale J. Biol. Med. 18, 243.
2. Hayek, L. J., and Bruickshank, J. G. (1977)Br. Med. J. Nov. 5, 1219.
3. Campylobacter enteritis—Vermont (June 23, 1978),MMWR 77, 207.
4. Blaser, M. J., Cravens, J., Powers, B. W., and Wang, W. L. (1978),Lancet 2, 979.
5. Campylobacter enteritis—Colorado (June 15, 1979),MMWR 28, 273.