. >>> the bye demonstration will and a national covid health emergency declaration, as nicole diantonioreports, it could mean some people could lose their healthcare coverage. >> i have today declared that the coronavirus is a public health emergency in united states. >> reporter: when they declared a public health emergency in january 2020, no one could've imagined it would last for more than three years, and more than 1 million americans. and the covid vaccine and new treatments mean the public health emergency will come to an end at midnight tonight. >>> january 20, 2021, it has declined by 99%. >> and now that the emergency is over, and giving out free to americans and they will remain free with gradually everyone at least through 2024. >> people could be limited with the pandemic, the guidelines are ending, 24 million americans may lose the coverage and with need to reapply. >>> kids and recently pregnant women, totally, disabled, may need to reapply for medicaid. >>> in danger of losing their insurance. >>> just because the emergency is over doesn't mean that covid is no longer a