1950 — Mumps, code 089 in 6th revision of International Lists (in PHS Mortality Data)–   40 

–40  Public Health Service. Vital Statistics of the [US] 1950, Vol. II1 Mortality Data, p. 61.

                                                                                                                             Source

Public Health Service, Department of Health, Education and Welfare. Vital Statistics of the United States 1950, Volume III, Mortality Data. Washington, DC: U.S. Government Printing Office, 1953. Accessed 9-2-2023 at: https://www.cdc.gov/nchs/data/vsus/VSUS_1950_3.pdf

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