Everything has a timeline

TiMELiNES

1955

Salk polio vaccine rollout begins

Mass vaccination campaigns using the Salk vaccine become a major public-health achievement.

Canonical milestoneUnited States1 timeline

Context

Appears In

TimelineTimeline of Public Health

Position 15

Authority

Sources

Encyclopaedia BritannicaConfidence 95%

Taxonomy

Tags

public-healthvaccination