🛠️ Invention or technique

Candid #1 vaccine against Argentine haemorrhagic fever

Vacuna Candid #1 contra la fiebre hemorrágica argentina

Date
1985-1990 · confidence medium
Place
Pergamino, Buenos Aires, Argentina
Credited to
Maiztegui Institute (Argentina) and USAMRIID (USA)
Field
Life & health

What it is

A live attenuated vaccine against Junín virus that protected rural workers in field trials involving thousands of volunteers in 1988-1990. Its efficacy was close to 95%.

The attenuated strain was developed at USAMRIID (Fort Detrick) in collaboration with the Maiztegui Institute at Pergamino; the date and licensing vary by country.

What it led to

  • Control of Argentine haemorrhagic fever
  • Vaccination of at-risk populations
  • A model of international scientific cooperation
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Sources✓ verified 2026-11-04