Medical workers wearing personal protective equipment wheel bodies to a refrigerated trailer serving as a makeshift morgue at Wyckoff Heights Medical Center, Monday, April 6, 2020, in the Brooklyn borough of New York. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. Sharon Hancock, left, and Shelia Theresa Adams pose for a portrait as they wait for the bus after visiting a friend in downtown Joliet, Ill., Monday, April 6, 2020. Chicago's mayor says the city is launching a health campaign focused on black and brown communities. Mayor Lori Lightfoot's comments Monday follow a WBEZ report highlighting the disproportionate number of black residents among those who have died of COVID-19 complications in the city. A coffin with the body of a recently deceased person sits in the bed of a pickup truck before burial, outside Teodoro Maldonado Hospital in Guayaquil, Ecuador, Monday, April 6, 2020. Guayaquil, a normally bustling city that has become a hot spot in Latin America as the coronavirus pandemic spreads, also has untold numbers dying of unrelated diseases that can’t be treated because hospitals are overwhelmed. Paramedics wheel a patient wearing a breathing apparatus into the emergency room at Wyckoff Heights Medical Center, Monday, April 6, 2020, in New York. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. A man wearing a face mask looks out from a small opening on the door of a pharmacy as he waits for customers in Igualada, Spain, Monday, April 6, 2020. Authorities in Catalonia lifted the total lockdown to the area engulfing the town of Igualada, although national confinement measures still continue. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. Municipal workers wearing protective suits spray disinfectant in an area in the center of Grozny, Russia, Monday, April 6, 2020. Ramzan Kadyrov, strongman leader of Russia's province of Chechnya, has taken extreme measures to fight the spread of the new coronavirus in the region, vowing Monday not to let anyone who is not a formal resident of Chechnya into the area.The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. A person wearing a protective face mask walks in New York, Monday, April 6, 2020, during the current coronavirus outbreak. A woman is reflected on a bus station as she wears a protective face mask amid concerns over the country's coronavirus outbreak, in Tel Aviv, Israel, Monday, April 6, 2020. Passengers wearing protective masks wave to members of the news media as they stand on their balcony aboard the Coral Princess cruise ship while docked at PortMiami during the new coronavirus outbreak, Monday, April 6, 2020, in Miami. According to Princess Cruises, disembarkation of guests is expected to take several days due to limited flight availability. Health personnel work at the headquarters of the Emergency Medical System (SEM) in Barcelona that coordinates emergencies during the COVID-19 virus outbreak in Catalonia, Spain, Monday, April 6, 2020. Spanish Prime Minister Pedro Sánchez Sánchez announced that he would ask the Parliament to extend the state of emergency by two more weeks, taking the lockdown on mobility until April 26. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. A worker, wearing a face mask as a measure against the spread of the new coronavirus, pushes crates of fish at a marine fish market in Lima, Peru, Monday, April 6, 2020. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. Homeless people stand in a queue to receive food distributed by the volunteers during the nation wide 21 day lockdown amid concern over the spread of coronavirus, in New Delhi, India, Monday, April 6, 2020. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. A woman passes by the "Lennon Wall" with a face mask attached to the image of John Lennon, in Prague, Czech Republic, Monday, April 6, 2020. The Czech Republic's government has incorporated dramatic restrictive measures to try and stem the spread of the new coronavirus. Medical staffer Wassim Kamari, who has symptoms of coronavirus, receives an x-ray of his lungs at the polyclinic Klinicare during a partial lockdown against the spread of Covid-19 in Brussels, Monday, April 6, 2020. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. Laborers cover themself with a plastic sheet in the rain as they wait for customers in Kabul, Afghanistan, Monday, April 6, 2020. A resident picks up a box with food given to them by the army at the Santa Rosita neighborhood on the outskirts of Guatemala City, Monday, April 6, 2020, during a stay-at-home curfew designed to slow the spread of the new coronavirus.

Johnson, 55, was conscious and did not immediately need to be put on a ventilator, his office said. The prime minister is the world's first known head of government to fall ill with the virus. U.S. President Donald Trump said he asked “leading companies” to contact officials in London about therapies that could help Johnson, calling them complex treatments recently developed by the unnamed firms.

“We have contacted all of Boris’ doctors, and we’ll see what’s going to take place, but they are ready to go,” Trump told reporters. The president said mitigation efforts are showing signs of slowing the spread of the virus. The nation’s top infectious disease specialist, Dr. Anthony Fauci, was cautiously optimistic, saying that in New York, “what we have been doing has been working.”

Gov. Andrew Cuomo announced the first, faint signs the outbreak in New York might be at or near its peak, while warning that it's no time to relax social distancing restrictions. He ordered schools and nonessential businesses to remain closed until the end of the month and doubled fines for rule breakers to $1,000.

“The numbers look like it may be turning. ‘Yay, it’s over!’ No, it’s not. And other places have made that mistake,” Cuomo said as deaths in the U.S. neared 11,000, with over 365,000 confirmed infections.

Stocks rallied on Wall Street and around the world on the news out of the U.S. and places like Italy and Spain. The Dow Jones Industrial Average gained more than 1,600 points, or nearly 8%. Outbreaks in other places moved in the opposite direction: France recorded its highest 24-hour death toll since the epidemic began —833. Japan considered a state of emergency for Tokyo and other areas because of soaring infections in the country with the world’s third-largest economy and its oldest population.

Worldwide, more than 1.3 million people have been confirmed infected and over 74,000 have died, according to Johns Hopkins University. The true numbers are certainly much higher, because of limited testing, different ways nations count the dead and deliberate underreporting by some governments.

The latest data suggests social distancing appears to be working in some countries, and better than expected. One of the main models on the outbreak, the University of Washington's, is now projecting about 82,000 U.S. deaths through early August, or 12 percent fewer than previously forecast, with the highest number of daily deaths occurring April 16. The model relies on much more robust data from Italy and Spain and from hospitals.

The number of dead in New York state rose past 4,700, and the death toll in New York City closed in on the 2,753 lives lost at the World Trade Center on 9/11. The state has averaged just under 600 deaths daily for the past four days. Though horrific, the somewhat steady daily totals were seen as a positive sign. Cuomo also reported that the number of new people entering hospitals daily has dropped, as has the number of critically ill patients needing ventilators.

But the health care system is still strained. To help, Trump said a military hospital ship sent to New York City can now accept COVID-19 patients. Cuomo tweeted that the USNS Comfort would add 1,000 beds staffed by federal personnel, providing “much-needed relief."

Elsewhere, China, where the outbreak began, reported no new deaths over 24 hours for the first time since it started releasing nationwide numbers in late January. Austria and the Czech Republic began discussing how to ease some restrictions, starting with reopening some small shops and garden centers next week.

But deaths in Britain climbed by more than 400 Monday, for a total of nearly 5,400. Sunday was especially bleak, with more than 600 deaths — more than Italy recorded. Italy, ravaged by the virus, had its smallest one-day increase of new COVID-19 cases in early three weeks. It also saw a drop for the third straight day in intensive care beds occupied by infected patients.

Premier Giuseppe Conte promised Italians that they will soon “reap the fruit of these sacrifices" in personal liberties, though he declined to say when the lockdown would be lifted. Italy has the world’s highest death toll — over 16,500 — but the pressure on intensive care units in the north has eased so much that it's no longer airlifting patients to other regions.

Nursing coordinator Maria Berardelli at the hard-hit Pope John XXIII hospital in Bergamo said that while the numbers of new patients had eased a bit, hospital staffers were still pulling long, difficult shifts.

“There has been no reduction in the work,” Berardelli said. “There have been fewer admissions to the emergency room, but our intensive care units are still full, so the activity hasn’t been reduced.” In Spain, deaths and new infections dropped again. The health ministry reported 637 new deaths, the lowest toll in 13 days, for a total of over 13,000 dead. New infections were also the lowest in two weeks.

It shows Spain is entering “a new phase of the battle,” said Transport, Mobility and Urban Affairs Minister José Luis Ábalos. But “this new phase does not mean we can let down our guard." It was a message repeated worldwide: Any gains could be reversed if people don't keep following lockdown rules.

A report from a federal watchdog agency found that three out of four U.S. hospitals surveyed are already treating patients with confirmed or suspected COVID-19. Some places, like Maryland, Virginia and Washington, D.C., are predicting the peak won't come until May or well into summer.

Baton Rouge, Louisiana, reported the death of a girl born prematurely after her mother contracted the disease and was put on a ventilator. Louisiana, where millions of tourists visit New Orleans yearly, had over 500 deaths.

However, Gov. John Bel Edwards says the state's death and hospital admission rates could suggest infections are slowing. “We are starting to see real signs that these mitigation measures that we put into place weeks ago are starting to bear real results,” he said.

For most people, the virus causes mild to moderate symptoms such as fever and cough. But for some, especially older adults and the infirm, it can cause pneumonia. Over 270,000 people have recovered worldwide.

Long reported from Washington. Hinnant reported from Paris. Associated Press writers around the world contributed.

Follow AP news coverage of the coronavirus pandemic at http://apnews.com/VirusOutbreak and https://apnews.com/UnderstandingtheOutbreak