Wikipedia
Typhoid Mary (Mary Walker), also known as Typhoid, Walker, Bloody Mary and Mutant Zero, is a fictional character, a supervillain appearing in American comic books published by Marvel Comics. The character is usually depicted as an enemy of Daredevil and Deadpool.
Usage examples of "typhoid mary".
That either the grayboys or the Ripley would find a Typhoid Mary, someone who could carry it and spread it without catching it him- or herself'.
I believe that we have both become what was once called a Typhoid Mary.
I might have become a Typhoid Mary and I might have developed a penchant for screwing up in various ways and I might yet lose my investigator's license, but my God I was good at my job.
An imputation of dust was far more significant than the announcement that a Typhoid Mary was threatening Manhattan.