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The CDC has updated its guidance, stating that fully vaccinated individuals no longer need to wear masks outdoors, except at crowded events. Unvaccinated people can also participate in some outdoor activities without masks, though their options are more limited. The White House is using these new guidelines to encourage more vaccinations as the rate has declined. A study from British researchers indicates that a single vaccine dose can reduce COVID-19 transmission within households by 49%. However, completing the full vaccination regimen is still recommended for optimal protection.

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