The Dow dropped more than 900 points on Friday but still finished higher for the week after doubts about the fate of the US economy in the face of the coronavirus hammered Wall Street.

US Stocks closed more than 3% lower on Wall Street giving back part of the gains they have piled up over the past three days and bringing an end to its best three-day bounce in almost a century.

The Dow dropped 915.39 points, or 4.1%, to 21,636.78 at the close on Friday. The S&P 500 dropped 3.4% to 2,541.47 and the Nasdaq dropped 3.7% to 7,502.38.

The indexes deepened their losses, even after the House of Representatives approved a $2.2 trillion aid package - the largest in American history - to help people and companies cope with an economic downturn caused by the coronavirus outbreak and provide hospitals with urgently needed medical supplies.

The United States has surpassed China and Italy as the country with the most coronavirus cases. The number of US cases passed 85,000, and the death toll exceeded 1,200.

The bill, along with unprecedented policy easing by the Federal Reserve, helped the S&P 500 surge 10.3% for the week, its best week since 2009. However, the US stock market benchmark is still down about 25% from its February high.

In its strongest three-day performance since 1931, the Dow surged 21% from Monday through Thursday.

However, many investors believe there is a strong risk the market could fall deeply again as coronavirus infections increase and more people die.

'Next week will depend on what happens over the weekend,' said Lindsey Bell, Chief Investment Strategist at Ally Invest. 'If there is a major acceleration over the weekend of coronavirus cases in New York and other states and the hospital system continues to get jammed up, then I think it will be a rough week for the market.'

Macroeconomic indicators offered a glimpse of the economic devastation from the crisis as the lockdown of major cities upends the lives of millions of Americans.

US consumer sentiment dropped to a near 3-1/2-year low in March, according to a survey released on Friday, a day after data showed a record 3 million surge in jobless claims last week.

Meanwhile, Treasury yields fell on Friday as investors shrugged off the passage of the $2 trillion stimulus bill by the U.S. Congress and sought safety in high-quality assets.

The benchmark 10-year yield was last down 12.9 basis points to 0.675%, and is down about 26 basis points this week.

The long bond was down 14.2 basis points to 1.252%. The short end of the curve was less affected with the two-year yield down 3.3 basis points to 0.240%.

Yields on the one- and three-month Treasury bills , among the most liquid government debt assets, fell below zero this week for the first time since 2015 and hit all-time lows.

Both yields had risen into positive territory on Friday, but remained less than 3 basis points off of the record lows.

NYSE-AMEX Options floor traders from TradeMas Inc. work in an off-site trading office built when the New York Stock Exchange closed earlier this week

The floor traders have traded the NYSE for a makeshift facility in a Brooklyn home while the coronavirus pandemic continues to unfold

One in three Americans say they or an immediate family member have lost their job as coronavirus continues to cripple the economy and new unemployment claims soars to 3.3million

One in three Americans say they or an immediate family member have lost their job as the coronavirus pandemic continues to cripple the world's economy and shatters President Donald Trump's record-breaking unemployment lows.

According to a new ABC News/Washington Post poll, one in three say they or an family member has been laid off due to the pandemic and half have reported a cut in pay or work hours.

The polling figures on job losses coincided with the federal government's release of new unemployment claims on Thursday that saw the numbers soar to 3.3 million.

Among those who haven't yet experienced a job loss in their family, 58 percent said they were concerned about the possibility it would occur. Fifty three percent also reported concerns their families would be hit with pay cuts or reduced working hours.

The survey found that higher levels of job losses or pay cuts have been felt among Americans with lower incomes and racial and ethnic minorities. Women who lack a four-year college degree are also among the most affected in terms of job losses.

The polling data comes as the number of Americans filing claims for unemployment benefits shot to 3.3 million last week as strict measures to contain the coronavirus pandemic saw the country come to a sudden halt.

The measures unleashed a wave of layoffs that likely brought an end to the longest employment boom in US history.

Three million people filed claims between March 14 and March 21, according to a staggering report that was released by the Department of Labor on Thursday.

One in three Americans say they or an immediate family member have lost their job as the coronavirus pandemic continues to cripple the world's economy. People wait in line at an unemployment center in Las Vegas on March 17

According to a new ABC News/Washington Post poll, one in three say they or an family member has been laid off due to the pandemic and half have reported a cut in pay or work hours