# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/thomas-francis-jr
# Generated: 2026-08-14T10:24:41.920Z

schema: https://schema.org/Person
url: "https://fame.am/person/thomas-francis-jr"
name: "Thomas Francis, Jr."
slug: "thomas-francis-jr"
description: "Thomas Francis Jr. was an American physician, virologist, and epidemiologist who guided the discovery and development of the polio vaccine being worked on by his student Jonas Salk. Francis was the first person to isolate influenza virus in the United States, and in 1940 showed that there are other strains of influenza, and took part in the development of influenza vaccines."
tagline: "American physician, virologist, and epidemiologist (1900-1969)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Thomas_Francis_Jr._Photograph_by_Fabian_Bachrach._Wellcome_L0018740.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
birthDate: "1900-07-15"
deathDate: "1969-10-01"
livingStatus: "DECEASED"
scores:
  popularity:           41.66
  momentum:             0
  historical:           7.21458
  currentAttention:     0
  sourceConfidence:     45
  profileCompleteness:  50
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://zh.wikipedia.org/wiki/%E5%B0%8F%E6%89%98%E9%A9%AC%E6%96%AF%C2%B7%E5%BC%97%E5%85%B0%E8%A5%BF%E6%96%AF"
    title: "小托马斯·弗兰西斯"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%AA%D9%88%D9%85%D8%A7%D8%B3_%D9%81%D8%B1%D8%A7%D9%86%D8%B3%D9%8A%D8%B3_%D8%A7%D9%84%D8%A3%D8%B5%D8%BA%D8%B1"
    title: "توماس فرانسيس الأصغر"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Thomas_Francis_Jr."
    title: "Thomas Francis Jr."
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Thomas_Francis_junior"
    title: "Thomas Francis junior"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Thomas_Francis_Jr."
    title: "Thomas Francis Jr."
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Thomas_Francis%2C_Jr."
    title: "Thomas Francis, Jr."
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%AA%D9%88%D9%85%D8%A7%D8%B3_%D9%81%D8%B1%D8%A7%D9%86%D8%B3%DB%8C%D8%B3"
    title: "توماس فرانسیس"
    type:  "WIKIPEDIA"
  - url: "https://ml.wikipedia.org/wiki/%E0%B4%A4%E0%B5%8B%E0%B4%AE%E0%B4%B8%E0%B5%8D_%E0%B4%AB%E0%B5%8D%E0%B4%B0%E0%B4%BE%E0%B5%BB%E0%B4%B8%E0%B4%BF%E0%B4%B8%E0%B5%8D_%E0%B4%9C%E0%B5%82%E0%B4%A8%E0%B4%BF%E0%B4%AF%E0%B5%BC"
    title: "തോമസ് ഫ്രാൻസിസ് ജൂനിയർ"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q2423973"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump