“…Whereas septicaemia due to b. coli and related organisms is recognized to be rare in older persons, numerous authors have commented on its frequency or reported cases in the new-born (Ylppo, 1919;Cruickshank, 1930 ;Dunham, 1933 ;Park and Williams, 1934 ;Merritt and Paige, 1935;Butler, 1937). Meningitis due to these organisms has been frequently reported in the new-born (Ylppo, 1919 ;Cook and Bell, 1922 ;Neal, 1924 ;Cruickshank, 1930;Park and Williams, 1934;Craig, 1936;Mulhern and Seelye, 1936;Crockford, 1938), though similar cases in older subjects are very rare. There is therefore a good case for the contention that new-born babies are peculiarly susceptible to infection with these organisms.…”