Editing 1907 in science (section)

==Medicine==
* [[Paul Ehrlich]] develops a chemotherapeutic cure for [[African trypanosomiasis|sleeping sickness]].
* [[George Soper]] identifies "[[Typhoid Mary]]" Mallon as an [[asymptomatic carrier]] of [[typhoid]] in [[New York (state)|New York]].<ref>{{cite journal|last=Soper|first=George A.|title=The work of a chronic typhoid germ distributor|journal=[[Journal of the American Medical Association]]|volume=48|issue=24|pages=2019–22|date=15 June 1907|doi=10.1001/jama.1907.25220500025002d|url=https://zenodo.org/record/1423366|archive-url=https://web.archive.org/web/20191221191415/https://zenodo.org/record/1423366|url-status=dead|archive-date=December 21, 2019}}</ref>
* [[Dengue fever]] becomes the second disease shown to be caused by a [[virus]].<ref>{{cite journal|last1=Henchal|first1=Erik A.|last2=Putnak|first2=J. Robert|title=The Dengue Viruses|journal=[[Clinical Microbiology Reviews]]|volume=3|issue=4|pages=376–96|date=October 1990|publisher=American Society for Microbiology|pmid=2224837|pmc=358169|url=|doi=10.1128/CMR.3.4.376}}</ref>
* [[Foreign accent syndrome]] is first described by French neurologist [[Pierre Marie]].<ref>{{cite journal|last=Marie|first=Pierre|year=1907|title=Presentation de malades atteints d'anarthrie par lesion de l'hemisphere gauche du cerveau|journal=Bulletins et Mémoires de la Société Médicale des Hôpitaux de Paris|volume=1|pages=158–160}}</ref>
* [[Indiana]], in the United States, becomes the world's first legislature to place laws permitting [[compulsory sterilization]] for [[Eugenics in the United States|eugenic]] purposes on the statute book.