Catherimarty Burgos, a member of the Miami-Dade County, Florida, "surge teams," distributes bags with masks, sanitizers, and gloves. Photo: Chandan Khanna/AFP via Getty Images

The Mayor of Miami-Dade County, Florida, on Thursday issued a 10 p.m. to 6 a.m. curfew "until further notice," as the state recorded its highest single-day novel coronavirus spike yet.

Why it matters: Miami-Dade County is Florida's biggest coronavirus hotspot.

Details: Mayor Gimenez also ordered entertainment venues including casinos, theaters and arcades to close by July 3, while making an exception for casinos on tribal land.

Flashback: Florida Gov. Ron DeSantis told reporters on Tuesday that the state would not reinstate restrictions or close businesses to mitigate the spread of the coronavirus, leaving the decisions to local officials.

Go deeper: Florida again breaks single-day record for new coronavirus cases

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24 hours ago - Health

Florida surpasses 500,000 confirmed coronavirus cases

Emergency at Coral Gables Hospital near Miami on July 30. Photo: Chandan Khanna/AFP via Getty Images

Florida has reported over 500,000 total confirmed coronavirus cases as of Wednesday, according to the state's health department.

Why it matters: Florida joins California as the only two states to surpass this milestone. Texas, which is reporting the third-most confirmed cases in the country, is not far behind, according to Johns Hopkins data.

Coronavirus hotspots begin to improve

Data: The COVID Tracking Project, state health departments; Map: Andrew Witherspoon, Danielle Alberti, Sara Wise/Axios

Coronavirus infections are falling or holding steady in most of the country, including the hard-hit hotspots of Arizona, California and Florida.

The big picture: A decline in new infections is always good news, but don't be fooled: the U.S. still has a very long way to go to recover from this summer's surge.

Updated Aug 5, 2020 - Health

N.Y., N.J. and Conn. to require travelers from 35 states to quarantine

Photo: Spencer Platt/Getty Images

Travelers from 35 states are now required to quarantine for 14 days when traveling to New York, New Jersey and Connecticut, per New York state's health department.

What's new: New York City will set up bridge and tunnel checkpoints to enforce the quarantine order, Mayor Bill de Blasio said Wednesday, per the Wall Street Journal.