# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/ralph-m-steinman
# Generated: 2026-08-31T13:49:55.964Z

schema: https://schema.org/Person
url: "https://fame.am/person/ralph-m-steinman"
name: "Ralph M. Steinman"
slug: "ralph-m-steinman"
description: "He discovered the immune system's quarterbacks — dendritic cells, the sentinels that decide which threats get flagged for destruction — and won a Nobel Prize three days after he died."
tagline: "Canadian immunologist and cell biologist (1943–2011)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/RMSt.jpg?width=1200"
gender: "male"
country:
  name: "Canada"
  isoCode: "CA"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1943-01-14"
deathDate: "2011-09-30"
livingStatus: "DECEASED"
scores:
  popularity:           53.07
  momentum:             0.07057546145494029
  historical:           22.73344666666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
tags:
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    slug: "scientists"
  - name: "Scientist"
    slug: "scientist"
  - name: "Biology"
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  - name: "Medicine"
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# bio (long form, separated for readability)
bio: |
  Ralph Marvin Steinman was born January 14, 1943, in Canada and became a physician and medical researcher at Rockefeller University. In 1973, working as a postdoctoral fellow in Zanvil A. Cohn's lab, he identified and named dendritic cells — a find that reframed how the immune system recognizes danger. The work earned him the 2011 Nobel Prize in Physiology or Medicine. He died September 30, 2011, three days before the announcement.