[The exemplary demeanor of a field epidemiologist: M. Baltazard and the center of plague in northeastern Brazil].
D000818:Animals; D035843:Biomedical Research; D001938:Brazil / Q000453:epidemiology; D005602:France; D049673:History, 20th Century; D006801:Humans; D010930:Plague / Q000453:epidemiology / Q000266:history / Q000662:veterinary; D012376:Rodent Diseases / Q000453:epidemiology / Q000266:history; D012377:Rodentia