CASE REPORTS PRESENTED IN THIS ISSUE OF THE JOURNAL represent the first documented cases of hepatitis E in Canada. Globally, the existence of enteric ally transmitted non-A, non-B hepatitis has been recognized for many years and accounts for over 50% of acute hepatitis in developing nations. Usual somatotropic viruses were not found to cause this disease and the term viral hepatitis type E (hev) was coined. Although studies in nonhuman primates failed to yield a cultivable pathogen, electron microscopy of stool samples revealed the presence of viruslike particles.