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| 1963 || Scientific development || Microbial infection || Guerin shows that desiccated microbes are more resistant to ozone than hydrated cells.<ref name="Rogers"/> ||
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| 1963 || {{w|Social distancing}} || || "In 1963 when Edward Hall, a cultural anthropologist, coined the term proxemics to define studies about social distancing in everyday life, nobody thought that a virus, 100 times smaller than even a bacteria, would make human closeness a big problem. Hall’s concern was that closer distances between two persons may increase visual, tactile, auditory, or olfactory stimulation to the point that some people may feel intruded upon and react negatively"<ref name="deasa">{{cite web |title=SOCIAL DISTANCING: ORIGINS AND EFFECTS |url=https://bcmj.org/blog/social-distancing-origins-and-effects |website=bcmj.org |accessdate=31 July 2020}}</ref> ||
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| 1964 || Disinfection method introduction || || {{w|Johnson and Johnson}} starts providing commercial {{w|gamma irradiation}}.<ref name="Rogers"/> ||
