Because it can be 14 days before a person exposed to the virus becomes ill, it will be a couple of weeks before any spike occurs associated with holiday gatherings.
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The Southern Nevada Water Authority has been testing wastewater for the presence of the coronavirus since March.
Taiwan, Singapore and South Korea require the use of contact tracing apps and tools to prevent the spread of COVID-19. What if the U.S. took that step?
Moderna Inc. said it would ask U.S. and European regulators Monday to allow emergency use of its COVID-19 vaccine.