Transportation and shipping

In this March 27, 2017, file photo, tourists from China take pictures at the New England Aquarium in Boston. With tens of millions of Chinese ordered to stay put and many others opting to avoid travel as the new coronavirus spreads, tourism around the global is taking a heavy hit during one of the biggest travel seasons, the Lunar New Year. (AP Photo/Elise Amendola, File)

In this photo released by China's Xinhua News Agency, Chinese Premier Li Keqiang, fourth left, speaks with construction workers at the site of makeshit field hospital being built in Wuhan in central China's Hubei province, Monday, Jan. 27, 2020. China on Monday expanded its sweeping efforts to contain a deadly virus, extending the Lunar New Year holiday to keep the public at home and avoid spreading infection. (Li Tao/Xinhua via AP)

FILE - In this April 10, 2019, file photo, rush-hour traffic heads east, left, and west, right, along the Schuylkill Expressway in Philadelphia. A spokesman for Pennsylvania's governor said the state was committed to being a part of Transportation and Climate Initiative conversations. But a growing number of Northeast governors have concerns the TCI could increase gas prices, and raise doubts about how effective it would be in capping pollution. The initiative is aimed at a dozen Northeast and mid-Atlantic states and would take effect in 2022. (AP Photo/Jacqueline Larma, File)

A trader works on the floor of the New York Stock Exchange, Monday, Jan. 27, 2020. Stock tumbled at the open on Wall Street following a sell-off in markets in Europe and Japan as investors grow more concerned about the potential economic impact of an outbreak of a deadly coronavirus. (AP Photo/Richard Drew)

FILE - In this April 16, 2015 file photo, an Air India aircraft prepares to land at the Indira Gandhi International airport in New Delhi, India. India said Monday it plans to sell its entire stake in the national carrier Air India to shore up falling revenues and privatize the airline, after an initial attempt last year failed to attract a single bidder. (AP Photo/Altaf Qadri, File)

Paramilitary police wear face masks as they stand guard at Tiananmen Gate adjacent to Tiananmen Square in Beijing, Monday, Jan. 27, 2020. China on Monday expanded sweeping efforts to contain a viral disease by postponing the end of this week's Lunar New Year holiday to keep the public at home and avoid spreading infection. (AP Photo/Mark Schiefelbein)

A man burn joss sticks as he prays at the Wong Tai Sin Temple, Friday, Jan. 24, 2020, in Hong Kong, to celebrate the Lunar New Year which marks the Year of the Rat in the Chinese zodiac. China is expanding its lockdown against the deadly new virus to an unprecedented 36 million people and rushing to build a prefabricated, 1,000-bed hospital for victims as the outbreak cast a pall over Lunar New Year, the country’s biggest and most festive holiday. (AP Photo/Achmad Ibrahim)

FILE - In this Jan. 23, 2020, file photo, Chinese paramilitary police stand guard outside the closed Hankou Railway Station in Wuhan in central China's Hubei Province. Cutting off access to entire cities with millions of residents to stop a new virus outbreak is a step few countries other than China would consider, but it is made possible by the ruling Communist Party's extensive social controls and experience fighting the 2002-03 outbreak of SARS. (Chinatopix via AP, File)

Passengers wearing protective face masks enter the departure hall of a high speed train station in Hong Kong, Thursday, Jan. 23, 2020. China closed off a city of more than 11 million people Thursday, halting transportation and warning against public gatherings, to try to stop the spread of a deadly new virus that has sickened hundreds and spread to other cities and countries in the Lunar New Year travel rush. (AP Photo/Kin Cheung)