“…To summarize, histamine sensitization in mice in response to B. pertussis infection was first described over 50 years ago (606). Subsequently, histamine sensitization was studied by many investigators, but only five studies involving humans were carried out (269,486,501,561,574,576,618,622,625,686,701,801). In a 1948 study, Parfentjev and Goodline found that mice injected intraperitoneally with a pertussis vaccine subsequently became hypersensitive to histamine challenge; 2 mg of histamine had similar lethality in sensitized (previously vaccinated) mice as did 50 mg in unvaccinated mice (606).…”