“…There were several contradictory reports (Stark, 1966;Ceccarelli and Torbidoni, 1967;Kogon et al, 1967) published after the Australian finding (Stoller and CoUr^ann, 1965a) that epidemics of infectious hepatitis were followed by a rise in Table 3 CF and TRC tests done on sera adsorbed with fresh liver tissue births of Down's syndrome children nine months later. The present results raise the possibility that the infectious hepatitis-Down's syndrome relationship might be the result of an immunological phenomenon, since thyroid antibodies are present in a significant number of cases of infectious hepatitis.…”