Originally patient O (standing for out of California), referring to Gaëtan Dugas, a superspreader of AIDS. The letter O was later misinterpreted as a zero.
"patient-zero." YourDictionary, n.d. Web. 23 June 2018. <http://www.yourdictionary.com/patient-zero>.
patient-zero. (n.d.). Retrieved June 23rd, 2018, from http://www.yourdictionary.com/patient-zero
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