A woman sanitizes a room at a private hospital in San Salvador, El Salvador, March 11. Photo: Camilo Freedman/Aphotografia/Getty Images

El Salvador President Nayib Bukele declared a national 21-day quarantine on Wednesday, although the country has no confirmed coronavirus cases, following the World Health Organization classifying the outbreak as a pandemic.

Where it stands: The closest COVID-19 cases to the Central American country are located in Honduras, which has two confirmed cases as of Wednesday, per the Johns Hopkins University Coronavirus Resource Center. There are eight cases in Mexico and 13 in Costa Rica.

Details: The quarantine was set at 21 days in order to determine whether or not there are COVID-19 cases within the country, Bukele said in a meeting with business unions on Wednesday.

  • The quarantine will prevent foreign travelers from entering the country.

Go deeper: Coronavirus updates

Go deeper

Jun 18, 2020 - Health

Los Angeles, Phoenix lead metro areas with most new coronavirus cases

Adapted from Nephron Research; Chart: Naema Ahmed/Axios

New York City is no longer the metro area with the most new coronavirus cases each day in the U.S. In fact, it's not even in the top 20, per Nephron Research. Neither is Boston, D.C., San Francisco or Detroit.

Between the lines: We may still be in the first wave of the coronavirus pandemic as a country, but this phase of it looks very different than the first.

Updated 7 hours ago - Health

U.S. coronavirus updates

Data: The COVID Tracking Project; Map: Andrew Witherspoon/Axios

South Carolina restaurants and bars will have to close alcohol sales by 11 p.m., beginning Saturday, under an order issued Friday by Gov. Henry McMaster.

The big picture: The U.S. had another record single-day spike of 63,200 new coronavirus cases from Thursday. COVID-19 cases in South Carolina have increased, with 21,560 cases recorded in the last two weeks.

Oklahoma among the states with highest coronavirus case growth

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

Coronavirus cases are quickly spreading in Arizona, a handful of southern and western states and, ominously, Oklahoma — the planned site of President Trump's controversial rally this weekend.

Why it matters: Once community spread takes off, cases can begin to increase exponentially.