TYPHOID ‘^BACILLUS CAEKIEKS. ’’ 171 
He mentions another instance in which one girl probably contracted 
the infection from another with whom she shared her bed ; her com- 
panion was found to have the bacilli in her urine. ‘ 
Friedel (1906) gives an account of a series of outbreaks of typhoid 
in an insane asylum which he traced to an imbecile helper in the 
kitchen of the institution. In all, 63 cases were produced by this 
woman who had been in the asylum six }^ears, and had not been 
known to have had the disease, but who was found with the bacilli 
in her feces. 
He speaks also of a woman who, during the first six weeks of her 
convalescence from an unrecognized attack of typhoid, caused 11 
cases of the disease in members of her family. At the end of this 
time she was found to be discharging the bacilli in her urine. 
Liebetrau (1906) reports the case of a woman, K , who had 
typhoid from January 17 to the end of Februar}^, 1905. Fecal 
examination as late as October, 1905, showed her to be still discharg- 
ing typhoid bacilli. In April, 1905, the woman K went to live 
at the house of O , where she remained till July 10. Two mem- 
bers of the family of O were taken sick in June, and a third 
about a month after K left the house. The last case was prob- 
ably infected by contact with one of the former cases. The woman 
K , therefore, may be regarded as having caused, in all, three 
cases of the disease within a comparatively short period. 
More instances could be cited; but it is believed that the above will 
sufficiently indicate the serious menace which typhoid bacillus 
carriers are to the public health. 
