Live Coronavirus Updates: Global Tracker

“Clearly we’ve had an outbreak among bars, restaurants, social activities in Delaware beaches,” said Mr. Carney, who noted “complacency in mask wearing and social distancing.”

The decision comes as New York officials are becoming increasingly concerned that the increase in virus cases in more than 30 states could trickle back to New York, which has managed to rein in the outbreak.

“Indoors is the problem more and more,” Mr. de Blasio said at his daily briefing, adding, “The news we have gotten from around the country gets worse and worse.”

The mayor said restaurants should “double down” on outdoor dining. “It is not the time to forge ahead with indoor dining,” he said.

Shortly afterward at his own briefing, Mr. Cuomo agreed that bringing back indoor dining in the city was “imprudent,” pointing to the rising rates of infection elsewhere that he said were “storm clouds on the horizon.”

Indoor dining could resume, he said, once more citizens complied with wearing masks and social distancing, and when case numbers nationally stabilized.

But he chided Mr. de Blasio, a regular political foe, and other local officials for not doing enough insure that residents were abiding social distancing rules. “Citizen compliance is slipping,” he said.

“Local government has to step up and do their job,” he said, adding that “its much worse” in New York City.

On Tuesday, the governors of New York, New Jersey and Connecticut called on travelers from 16 states, including the nation’s three largest — California, Florida and Texas — to quarantine for 14 days after arriving.

Statewide, all New Yorkers can get tested, Mr. Cuomo also said. New York City had previously allowed anyone to be tested.

“If the trends continue the way we are, we will be inundated,” Carlos Migoya, the hospital’s president and chief executive, told the Miami-Dade County Commission.

As cases surge in Texas, the state’s lieutenant governor, Dan Patrick, claimed that Dr. Fauci, the nation’s top infectious disease doctor, “doesn’t know what he’s talking about” when it comes to the state’s handling of the worsening pandemic.

Mr. Patrick claimed that Dr. Fauci “has been wrong every time on every issue.” He added: “I don’t need his advice anymore.” He spoke on a day that Texas added more than 7,900 new cases, a new record.

Texas, which moved swiftly to reopen, has emerged as one of the new centers of the pandemic, prompting Gov. Greg Abbott to roll back part of the state’s phased reopening plans by ordering the closure of bars and reducing capacity at restaurants.

Spain and Portugal are officially reopening their land border, an event that will be attended by King Felipe VI and the prime ministers of both countries. The border had been closed since mid-March. Spain reopened its border with France on June 21.

Visitors also returned to a growing list of museums, including the Grand Palais and Centre Pompidou in Paris, and the Museum of Cycladic Art in Athens.

In the Netherlands, gatherings of up to 100 are now allowed, although the government urged people stay five feet (1.5 meters) apart. Sex work in the country is also allowed again.

Thousands of people in Prague in the Czech Republic held a symbolic farewell party for the pandemic on Tuesday, the BBC reported. Guests shared food and there was no social distancing. The country, which locked down early, has had about 350 deaths and 12,000 cases of the virus.

Some countries in the Middle East also relaxed virus-related measures on Wednesday. Restaurants in a few tourist areas in Qatar were allowed to reopen under some restrictions. Malls and shopping centers in Qatar also opened their doors, but prayer rooms and cinemas were among the spaces to remain closed.

Some flights in Lebanon and Egypt also resumed. EgyptAir began service to more than two dozen international destinations on Wednesday.

Here are other developments from around the globe:

• In Israel, the Health Ministry announced that it recorded 773 cases on Tuesday — the highest daily case count since the contagion first emerged in Israel. It recorded 752 cases on Sunday. In the past couple of weeks, the authorities have imposed significant restrictions in locations with high numbers of cases, while allowing the rest of the country to stay largely open.

• The Hebron region of the West Bank accounts for more than 80 percent of active virus cases in the territory, and the Palestinian Authority Health Ministry reported Wednesday that it had recorded 199 new cases, bringing the number of active cases there to 1,804. Jibrin al-Bakri, the governor of Hebron, said that the city and its surrounding villages would be locked down for five days, with all movement banned except for visits to places such as pharmacies or bakeries.

Adam Silver, the commissioner of the N.B.A., said Tuesday that the league could put the brakes on its attempt to close out the season in case of an outbreak among players or staff members.

The season is scheduled to restart without spectators on July 30 at Walt Disney World near Orlando, and the N.B.A. finals are scheduled to begin Sept. 30. The league went on hiatus in March with roughly 20 percent of its season left to play.

Silver also said that he was “pretty confident” that the N.B.A. would be able to go through with its plans, in spite of Florida becoming one of the country’s hot spots. Orange County, where Walt Disney World is located, has seen a drastic rise in positive cases in the last month. But epidemiologists have largely praised the league’s plan as comprehensive.

“Our model was designed to protect us and our players from the cases in the outside community,” Silver said. “Maybe at the time we designed it, we didn’t think it would be as necessary as it is now. But at least we’re preparing for it.”

Did the George Floyd protests in New York lead to a virus surge? Here’s what we know.

On May 27, the day before the protests began in New York City, some 754 Covid-19 cases were diagnosed, according to the city’s Department of Health. That was the last time the city recorded more than 700 cases on a single day.

By the end of the first week of protests, the city was recording slightly more than 500 cases a day. By the end of the second week of protests, the case counts were in the low 400s or high 300s a day. They’ve continued to drop slightly. The last time New York City recorded more than 300 cases was on June 22.

“We’ve been looking very closely at the number of positive cases every day to see if there is an uptick in the context of the protests,” Ted Long, executive director of the city’s contact tracing program, said. “We have not seen that.”

In interviews, several epidemiologists expressed either surprise or relief, and offered theories for what occurred. This is what we know:

• The virus spread in New York City was already slowing down.

• Outdoor transmission is more rare.

• Most protesters wore masks.

• We could still see a wave of infections tied to the protests.

Wall Street starts the second half of 2020 on uneasy ground.

The S&P 500 rose slightly, while European markets were modestly lower, following a mixed day in Asia.

The first half of 2020 proved to be unpredictable as stocks on Wall Street experienced their biggest quarter-to-quarter swing in more than 80 years, propelled by the global pandemic and economic shutdowns, followed by extra big helpings of fiscal stimulus by central banks. In the three months that just ended, the S&P 500 rose 20 percent, the best calendar quarter for the broad market index since 1998.

But the direction of stocks for the rest of the year is a mystery.

There’s so much uncertainty about the virus that roughly 40 percent of the S&P 500, about 200 companies, have withdrawn their customary forecasts about how their businesses will perform in the months ahead, according to data from S&P Capital IQ.

The companies’ silence has unnerved analysts, who have already axed their expectations for profit growth substantially. They’re now expecting that second-quarter profits will fall more than 40 percent, according to numbers compiled by the data provider FactSet.

In hospitals in other impoverished neighborhoods around New York City, some critically ill patients were put on ventilator machines lacking key settings, and others pleaded for experimental drugs, only to be told that there were none available.

It was another story at private medical centers in Manhattan, which have billions of dollars in endowments and cater largely to wealthy people with insurance. Patients there got access to heart-lung bypass machines and specialized drugs like remdesivir, even as those in the city’s community hospitals were denied more basic treatments like continuous dialysis.

Now, evidence is emerging of another inequality affecting low-income city residents: disparities in hospital care.

Excluding Guyana, the Caribbean economy is expected to contract by 3 percent in 2020, according to the World Bank.

“We’re not fooling ourselves. We fully expect to see a slow return of travel,” said Frank Comito, the chief executive and director general of the Caribbean Hotel & Tourism Association, which represents 33 national hotel associations in the region.

As countries reopen, most are mandating face masks indoors and social distancing.

As governments have clarified their policies, airlines, including American, Delta, JetBlue and Southwest, plan to resume service to many Caribbean destinations in July.

When they do, they’ll be flying into a hurricane season that the National Oceanic and Atmospheric Administration predicted could be above normal. In May, it forecast 13 to 19 named storms, including three to six major hurricanes at Category 3 and above.

Rules on masks are left up to state and local governments, but enforcing them often falls to store and restaurant employees. Grocery store managers are training staff on how to handle screaming customers. Fistfights are breaking out at convenience stores. Some restaurants even say they’d rather close than face the wrath of various Americans who believe that masks, which help prevent the spread of coronavirus, impinge on their freedom.

Joe Rogers, 47, of Dallas, said he had gotten in a physical fight last week over masks.

In line at a Mini-Mart, he said he spotted an unmasked customer behind him and shook his head. The man asked why Mr. Rogers had been looking at him and Mr. Rogers, again, shook his head.

“I wear a full face guard, the mask that they use when they spray pesticides,” he said. “He reached for my mask and tried to pull it off.” Mr. Rogers said his “natural instinct” came out and he put his hand up and knocked the man to the floor.

Gov. Gavin Newsom of California ordered the mandatory wearing of masks in public on June 18. A little more than a week later, Hugo’s Tacos, a taqueria with two locations in the Los Angeles area, announced that it would close temporarily because its staff was “exhausted by the constant conflicts over guests refusing to wear masks.”

Bill Kohne, the chief executive of Hugo’s, said that it was only in the last few weeks that the encounters had become so vitriolic.

“The one that we most viscerally remember is that a customer at the pickup window who was asked to wear a mask literally threw a cup of water through the window at the clerk,” Mr. Kohne said.