Michigan and Washington are the latest US states to bring in strict measures to try and curb the spread of Covid-19.
High schools and colleges are to halt on-site teaching and restaurants are prohibited from offering indoor dining in Michigan from Wednesday.
Indoor restaurant dining is also banned in Washington State, and gyms, theatres and museums will have to close.
Covid cases have now topped 11 million in the US, with daily cases rising by more than 100,000.
On average, more than 900 people a day are dying with the virus.
The Trump administration struck an optimistic tone on Friday, saying they hoped to distribute 20 million doses of an approved vaccine in December, and for each month after that – although vaccines have yet to get official approval.
President Donald Trump again ruled out putting the US into lockdown, but many states are introducing their own restrictions as fast rising cases threaten to overwhelm their healthcare systems.