Senator Richard Gordon, the head of the Philippine Pink Cross, explained that professional medical groups had been dispatched to the airport to respond to the crash involving Flight 5880.

“Eight passengers — consisting of a flight medic, a nurse, medical doctor, a few flight crew, one client and its companion had been onboard,” he stated. “The plane caught fireplace and exploded as it was getting off the NAIA runway 24, he included, referring to the Ninoy Aquino Global Airport. “The hearth was massive.”

Lionair Inc. flies constitution flights and has contracts with the federal government. It operates air ambulances far too and is encouraging the governing administration in its anti-coronavirus system, transporting healthcare materials.

In September a mild plane also operated by the charter business crashed in Laguan, a suburban province just south of Manila, killing nine men and women aboard.

Mr. Trump said that hydroxychloroquine, an old and relatively inexpensive malaria treatment, has shown “encouraging early” results as a Covid-19 treatment. Dr. Hahn said that the president had directed the F.D.A. to look at available malaria treatments including chloroquine, but again reiterated that experts would be doing this within the context of a clinical trial.

“We know that if things don’t go as planned it’s not going to kill anybody,” Mr. Trump said. “When you go with a brand-new drug you don’t know if that’s going to happen.”

Mike Pence, the vice president, said that he and the president would meet by teleconference with the nation’s governors later Tuesday at FEMA headquarters, and said the organization would “take the lead” in the nation’s coronavirus response.

Mr. Pence said that testing is available in all 50 states, and “tens of thousands of tests” are being performed every day, despite widespread reports that Americans are struggling to access testing. Mr. Pence said companies including Honeywell and 3M would increase “by the millions” the number of available N-95 masks for healthcare workers, and said that the government was working to increase the number of ventilators that could be stockpiled to assist the patients with severe cases of the virus.

“We’ve identified tens of thousands of ventilators that can be converted to treat patients,” Mr. Pence said.

Dr. Birx said that a large backlog of pending tests would be released in the next two to three days. She said that 50 percent of reported coronavirus in the United States have come from 10 counties, and praised health care workers for prioritizing available tests for people who show symptoms, adding that the number of positive results had increased as a result.

For the Fusco family in Freehold, N.J., the dangers of the virus and its pernicious exploitation of human connection were laid bare when Grace Fusco, 73, died Wednesday night, hours after her son and five days after her daughter. Four other family members are hospitalized, three of them in critical condition, from an infection traced to a routine family gathering.

No one is safe.

Dr. Deborah Birx, the White House coronavirus response coordinator, warned that as testing becomes more widespread, people would see the numbers soar.

President Trump signed a relief package to provide sick leave, unemployment benefits and free coronavirus testing, and lawmakers were drafting an even more sweeping $1 trillion economic stabilization package.

But even as the federal government invoked wartime powers to speed the production of surgical masks, protective body suits, testing kits and, especially, ventilators, essential medical equipment remained in short supply.

World leaders escalated pleas to the only ones who can ultimately help buy time: everyone.

“It’s down to each and every one of us,” Chancellor Angela Merkel of Germany said in a televised address. “We are not doomed to helplessly watch the spread of the virus. We have a means to fight it: we must practice social distancing.”

Failure to do so could result in even more stringent lockdowns that Germany has so far avoided, she said. “We are a democracy. We don’t live by force, but by shared knowledge and cooperation.”

Even as nations wrestled with a public health emergency, the economic crisis grew darker. Overnight, the European Central Bank introduced a huge bond-buying program aimed at preventing economic calamity.

The volatile markets only added to the deepening anxiety felt by people increasingly cut off from their support networks.

But, as Ms. Merkel said, even as a society in isolation, “we will show that we are there for one another.”

The majority leader, Senator Mitch McConnell of Kentucky, said that his party was near a deal with the White House that would be the starting point for negotiations with Democrats.

The Trump administration’s proposal includes $500 billion for two waves of direct payments to taxpayers and an additional $500 billion in loans for businesses. Speaker Nancy Pelosi has told colleagues that she is aware of concerns about including provisions on unemployment insurance, increased Medicaid funding and further assistance to small businesses.

Treasury Secretary Steven Mnuchin said that the economic relief plan included payments of $1,000 for American adults and $500 per child sent within three weeks. It is not clear if Americans of every income bracket will be eligible for the payments or how they will be disbursed to those who do not have bank accounts. The Trump administration has proposed sending $500 billion directly to Americans in two waves.

“What we’re really focused on is providing liquidity to American businesses and American workers,” Mr. Mnuchin said on the Fox Business Network on Thursday. “This is an unprecedented situation.”

Mr. Mnuchin insisted that the Treasury and the Federal Reserve were working in lock step and were prepared to do whatever was necessary to provide liquidity to American companies so that they can weather the crisis without laying off workers.

The study, published Thursday in the journal Nature Medicine, calculated that people with coronavirus symptoms in Wuhan had a 1.4 percent likelihood of dying. Some previous estimates have ranged from 2 percent to 3.4 percent.

Assessing the risk of death in Wuhan is instructive because it provides a snapshot of the epidemic from the beginning, when doctors were scrambling to treat people with a brand-new virus and hospitals were overwhelmed.

Some experts say that such a benchmark — known as the case fatality rate — could be lower in countries like the United States if measures like widespread business and school closures and appeals for social distancing have the desired effect of slowing the spread of the disease.

But a 1.4 percent case fatality rate still means a lot of deaths. By comparison, the average seasonal flu kills about 0.1 percent of the people it infects in the United States.

Officials said 34 new coronavirus cases had been confirmed, all of them involving people who had come to China from elsewhere.

In signaling that an end to China’s epidemic might be in sight, the announcement could pave the way for officials to focus on reviving the country’s economy, which nearly ground to a halt after the government imposed travel restrictions and quarantine measures. In recent days, economic life has been resuming in fits and starts.

But China is not out of danger. Experts have said that it will need to see at least 14 consecutive days without new infections for the outbreak to be considered over. It remains to be seen whether the virus will re-emerge once daily life restarts and travel restrictions are lifted.

“It’s very clear that the actions taken in China have almost brought to an end their first wave of infections,” said Ben Cowling, a professor and head of the division of epidemiology and biostatistics at Hong Kong University’s School of Public Health. “The question is what will happen if there’s a second wave, because the kind of measures that China has implemented are not necessarily sustainable in the long term.”

To contain the outbreak, the authorities shut schools and workplaces, imposed travel restrictions, and ordered quarantines on broad swaths of the population and many visitors from abroad. Since January, more than 50 million people in the central province of Hubei, including its capital, Wuhan, where the outbreak began, have been subjected to a strict lockdown.

The report, issued Wednesday by the Centers for Disease Control and Prevention, found that — as in other countries — the oldest patients were at greatest risk of becoming seriously ill or dying. But of the 508 coronavirus patients known to have been hospitalized in the United States, 38 percent were between 20 and 54. And nearly half of the 121 sickest patients studied — those admitted to intensive care units — were adults under 65.

“I think everyone should be paying attention to this,” said Stephen S. Morse, a professor of epidemiology at Columbia University. “It’s not just going to be the elderly.”

Dr. Deborah Birx, coordinator of the Trump administration’s coronavirus task force, appealed on Wednesday for younger people to stop socializing in groups and to take care to protect themselves and others.

Investors were dealing with a flurry of news. Overnight, the European Central Bank unveiled a huge bond-buying program aimed at preventing economic calamity, and the Fed presented a plan to support money market funds, which are threatened when there is a rush for cash. U.S. officials also neared passage of stimulus efforts to keep the American economy running.

Treasury Secretary Steven Mnuchin said on Thursday that the White House’s economic relief plan included direct payments to taxpayers of $1,000 for every adult and $500 per child sent within three weeks. If the crisis continues, checks for the same amounts could be sent again in May.

But the efforts to bolster the economy have been accompanied by a sharp escalation in the number of coronavirus cases in Europe and the United States — and fresh evidence of the pandemic’s impact on businesses.

Gov. Andrew M. Cuomo of New York on Thursday waived mortgage payments for 90 days for people facing hardship and ordered businesses to keep 75 percent of workers home.

“We are battling two things,” Mr. Cuomo said on CNN. “And I am as afraid of the fear and panic as I am of the virus.”

While he said that it was necessary for the government to act with the urgency of a nation at war when it came to manufacturing critical supplies like ventilators, he said that people needed to be given better guidance.

“I spend half my day knocking down rumors that we are going to lock people in their homes,” he said, noting that New York City seemed to be at “near panic levels.”

“I am not going to imprison anyone in the state of New York in their homes,” he said. “I am not going to declare martial law in the state of New York.”

He was critical of the term “shelter in place.”

“Do you know where that came from: nuclear war,” he said. “You go into a room with no windows until you get an all clear sign.”

That was not what was called for to fight the virus, he said.

More than 100 people have recently tested positive for the coronavirus in Borough Park and Williamsburg, two Brooklyn neighborhoods with sizable Hasidic populations.

Across the state, the number of new infections continued to grow exponentially, something health officials said to expect across the nation as testing increases.

Of the 14,597 people to be tested so far, nearly 5,000 were tested on Tuesday, helping explain why the number of new cases jumped for 1,000 in just 24 hours to 2,382 people.

Then an editor called, telling him about the coronavirus outbreak in the northern region of Lombardy and ordering to get to the area as soon as possible.

“I had to cover Italy’s coronavirus outbreak,” he wrote. “All I had was a ski mask.”

The situation changed rapidly, with thousands dead and the movements of 60 million people restricted. But, he writes, “I’ve been lucky. I am not sick. My family in Rome is not sick either.”

Editors in London immediately provided a supply of masks and hand sanitizer for Mr. Horowitz; Andrea Mantovani, the photographer; and Emma Bubola, another reporter based in Rome.

“Friends and family back in the United States or around Europe check in with me, asking how we’re doing,” he writes. “They sign off ‘Stay safe’ — the ‘Sincerely’ of the coronavirus age. But in some notes I detect a hint of appeal, a search for insights and instructions from my experience reporting on the front line of a crisis that is coming to them.”

The queen’s age puts her squarely in the high-risk category, and the palace is moving to ensure she is isolated.

A planned visit by the emperor and empress of Japan was postponed “in the current circumstances,” Buckingham Palace said on Thursday.

The palace announced this week that, “as a sensible precaution,” several changes would be made to the queen’s schedule, and that she and her husband, Prince Philip, would move to Windsor Castle.

Initially reluctant to impose widespread restrictions on Britain, Prime Minister Boris Johnson said that schools would close beginning Friday. He has also ordered 20,000 members of the military be put on standby to assist in the days ahead.

London has been the center of the outbreak in Britain, with more than one-third of the country’s 2,626 confirmed cases. By Wednesday, at least 103 coronavirus patients had died.

The country’s national health service, already strained, is bracing for an influx of patients. With new cases mounting daily, many have criticized Mr. Johnson for being slow to implement the stringent measures seen across much of Europe.

Meanwhile, Prince Albert II of Monaco on Thursday tested positive for the new coronavirus, the palace said in a statement, adding that the prince’s health condition was not worrying and that he would continue to work from his private apartment.

In Georgia, all members of the state legislature were asked to self-quarantine on Thursday after a state senator who voted at the Capitol this week tested positive for the coronavirus.

The senator, Brandon Beach, a Republican from the Atlanta suburbs, began experiencing symptoms last week and was tested over the weekend. Feeling better, he participated in a vote at the Capitol on Monday during a special session to ratify the governor’s order for a public health emergency. By Wednesday, he said, his results had come back positive.

Mr. Vucic personally thanked President Xi Jinping of China for his support and noted that Chinese medical experts and equipment were expected to arrive in the country by Saturday.

Before the crisis, Mr. Vucic had faced accusations that his government was intimidating the free press and stifling opposition. Elections scheduled for late April, already being boycotted by opposition parties, are now in doubt.

Serbia has dispatched its army to take control of the country’s borders.

All citizens older than 65 in cities and older than 70 in rural areas have been banned from leaving their homes, and the government has said it might introduce fines for those who refuse to comply. The army has also taken control of country’s migrant centers and ordered to help protect hospitals.

In January, following a U.S. airstrike that killed a top rated Iranian military services officer, Maj. Gen. Qassim Suleimani, the American-led mission in Iraq suspended its counter-Islamic Condition mission in the country for 10 times, hunkering down in anxiety of Iranian retaliatory strikes.

Next the death of Normal Suleimani, the Iraqi parliament known as for the expulsion of all American forces from the nation, around 5,200 troops, just after the authorities accused the United States of violating Iraqi sovereignty with the strike on the Iranian officer in Baghdad.

The past American killed in overcome in Iraq was in August 2019, when Marine Gunnery Sgt. Scott A. Koppenhafer died on a joint Iraqi-U. S. procedure in Nineveh Province from the Islamic State. The Pentagon is now weighing possibilities to draw down forces in Iraq to all over 2,500.

Eric Schmitt contributed reporting.

Senator Lindsey Graham, Republican of South Carolina and a close Trump ally, known as on Thursday for setting up a no-fly zone above Idlib “to save hundreds of harmless gentlemen, women of all ages and small children from a awful loss of life.”

But professionals take note that Mr. Trump may well have divided feelings. Jeffrey Edmonds, who dealt with Russia issues on the Countrywide Stability Council beneath Mr. Trump and also in the course of the Obama administration, said that “there is certainly a tension” as Mr. Trump has seemed drawn to the two presidents. “He’s so pro-Russia most of the time that Putin is placing him in a weird position vis-à-vis Turkey,” Mr. Edmonds said.

Final week, Mr. Trump again belittled proof displaying that Moscow experienced tried to impact the 2016 presidential election in his favor as “the ‘Russia, Russia, Russia’ nonsense.” Minutes later, he also discussed a the latest cell phone contact with Mr. Erdogan “about Idlib” and added that “we’re working collectively on observing what can be carried out.”

American diplomats have referred to as for Turkey, Russia and other overseas forces to resist exacerbating the wars in the two Libya and Syria, and alternatively uphold and implement stop-hearth agreements as a path to negotiated settlements.

“I do not think any individual in this nation is geared up to send the 82nd Airborne into that chaotic natural environment to try out and fix another trouble which is not of our making in Syria,” Robert C. O’Brien, the White House nationwide safety adviser, claimed at the Atlantic Council this thirty day period.

So much, that has not happened, and James F. Jeffrey, the State Department’s particular envoy on Syria and the Islamic Condition, claimed it was unclear if Russia was powerless to curb Mr. al-Assad or only chose not to.

Turkey and Russia have also taken opposing sides in Libya, where by a previous Libyan Army standard, Khalifa Hifter, and his forces are difficult the United Nations-backed federal government for command.

Russia has sided with Mr. Hifter, a dual Libyan-American citizen and former C.I.A. asset who is accused of torture. Mr. Hifter also has the assistance of Egypt, Saudi Arabia and the United Arab Emirates, all allies of the United States. The U.A.E. is a main supplier of arms and fighter jets for Mr. Hifter.

But Moscow, in search of to grow its impact in the Center East and Africa, has also deployed weapons and as quite a few as 1,400 mercenaries with the Russian private safety company Wagner Team to help Mr. Hifter, and has assisted his Libyan Country Military set up a rival government, such as by printing forex.

At a Senate Foreign Relations Committee hearing this thirty day period, a senior American diplomat talked about Libya and Syria in the identical breath even though blaming Russia’s international military campaigns for escalating each wars.

Christopher Robinson, a deputy assistant secretary of point out for European issues, reported Russia’s military services and political assistance for Mr. al-Assad “has fueled a conflict that has charge the life of hundreds of hundreds of innocent civilians and forced thousands and thousands to flee.”

“Libya now dangers getting the future location for Russia’s malign endeavours to exploit worldwide conflicts for its very own slim political and economic get,” Mr. Robinson reported.