RT Journal Article SR Electronic T1 The sad and tragic life of Typhoid Mary JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 915 OP 916 VO 154 IS 6 A1 Brooks, J. YR 1996 UL http://www.cmaj.ca/content/154/6/915.abstract AB As society grapples with contemporary moral questions raised by the barring of HIV-infected people from jobs and even crossing some national borders, it is probably useful to re-examine the case of Typhoid Mary. The case of Mary Mallon shows how an earlier age resolved the conflict that arises when society's right to protect itself from unnecessary exposure to disease impinges on the liberty of individual citizens.