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JAMA. 1931;97(3):189-190. doi:10.1001/jama.1931.02730030039020.
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Combined Antityphoid and Antidiphtheritic Vaccination  Médecin général Dopter, director of the health service of the ministry of war, and an eminent epidemiologist, presented recently before the Academy of Medicine an account of an experiment that he had ordered carried out in a garrison of young soldiers. Typhoid has disappeared from the French army since all recruits, before they are mustered into their regiments, have been compelled to submit to inoculation with a combined typhoid paratyphoid (A and B) vaccine. But diphtheria continues to claim its victims. Every year, a considerable number of cases develop soon after the arrival of the recruits, particularly in certain garrisons in which, in spite of thorough disinfection, the disease appears to have become endemic. The recruits, coming for the most part from the rural districts, become an easy prey to the disease, doubtless because there are numerous germ carriers among the seasoned soldiers with whom


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