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South Carolina's measles outbreak jumped to Washington state 5 times in 2 weeks

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 27/10/2026, 22:58:24 UTC.

Briefings

A measles outbreak in South Carolina expanded to Washington state via five importation events between January 2026 and April 2026, resulting in 26 cases before containment. The outbreak began in October 2025 and ended in April 2026, with 997 confirmed cases in the state. Washington state officials noted that domestic travel now poses greater risk than international incursions during this period.

Key points

• Washington state health officials confirmed five distinct importation events in January 2026 that introduced measles cases to Washington state from South Carolina.
• The outbreak resulted in 26 total cases among Washington state residents before containment efforts were fully implemented.

Context

Measles elimination in the US occurred in 2000, but recent vaccination rate declines have increased domestic travel risks. This finding highlights how local outbreaks can rapidly expand across states through imported cases.

Limitations

Evidence covers only the January 2026 outbreak period; no data on prior outbreaks or long-term vaccination trends is provided.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 27/10/2026, 23:14:47 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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