Travel laws and regulations

A saleswoman waits for customers in a shop as many smaller stores are allowed to open in Essen, Germany, Monday, April 20, 2020. Europe's biggest economy, starts reopening some of its stores and factories after weeks of lockdown due to the new coronavirus outbreak. (AP Photo/Martin Meissner)

FILE - In this April 1, 2020, file photo, Defense Secretary Mark Esper speaks about the coronavirus in the James Brady Press Briefing Room of the White House in Washington. The U.S. military is bracing for a months-long struggle against the coronavirus. It is looking for novel ways to maintain a defensive crouch that protects the health of troops without breaking their morale. (AP Photo/Alex Brandon, File)

This July 8, 2019, photo, shows cars to be exported at Kawasaki port, near of Tokyo. Japan’s exports sank 11.7% in March as the coronavirus pandemic slammed auto shipments to the U.S. The Finance Ministry said Monday, April 20, 2020 that exports to the U.S. fell 16.5% in March from a year earlier, while those to China declined 8.7%. (AP Photo/Koji Sasahara)

FILE - In this Feb. 28, 2020, file photo, a man wearing a face mask walks at the Yaba Mainland hospital, in Lagos, where an Italian citizen who entered Nigeria from Milan became the first case of the new coronavirus to be treated in Nigeria. A global "brain drain" of medical professionals to richer countries has left developing nations without tens of thousands of highly skilled workers. (AP Photo/ Sunday Alamba, File)

FILE - In this April 13, 2020 file photo, a worker wears a mask as he cleans up an area outside an entrance at Boeing Co.'s airplane assembly facility in Everett, Wash., north of Seattle. American industry collapsed in March as the coronavirus pandemic wreaked havoc on the U.S. economy. Manufacturing and overall industrial production posted the biggest drops since the United States demobilized after World War II. (AP Photo/Ted S. Warren, File)

This image taken in Hanoi, Vietnam, shows a monitor screen of ASEAN leaders attending the Special ASEAN summit on COVID-19 online Tuesday April 14, 2020. Counter-clockwise from top left: ASEAN Secretary General Lim Jock Hoi, Thai President Prayut Chan-ocha, Singaporean President Lee Hsien Loong, Philippine President Rodrigo Duterte, Myanmar State Counsellor Aung San Suu Kyi, Malaysia Prime Minister Muhyiddin Yassin, Indonesian President Joko Widodo, Laos Prime Minister Thongloun Sisoulith, Cambodian Prime Minister Hun Sen, Brunei Sultan Hassanal Bolkiah and Vietnamese Prime Minister Nguyen Xuan Phuc. (VNA via AP)

FILE - In this May 13, 2016, file photo, newly elected CONCACAF President Victor Montagliani smiles as he receives applause from fellow delegates during the 66th FIFA Congress in Mexico City. A FIFA vice president says most international soccer might not be played until 2021 due to coronavirus pandemic travel restrictions and the need to give club competitions the chance to resume. Montagliani of Canada has been heading a FIFA working group formulating plans to deal with the implications of the world’s biggest sport being largely shut down since last month. (AP Photo/Rebecca Blackwell, File)

In this photo taken from video provided by the New York Stock Exchange, Chief Security Officer Kevin Fitzgibbons rings the opening bell at the NYSE, while recognizing Randy Timmons in Albany, Ga., and thousands of employees of the Proctor & Gamble Company, Thursday, April 9, 2020. (New York Stock Exchange via AP)

Amanda Burkhead and Josh Cupit play a card game while sitting on the front porch, Thursday, April 2, 2020, in Greensburg, Ind. The couple worked at Honda will the plant was shut down due to COVID-19. Three southeast Indiana counties have among the highest per-capita coronavirus infection rates in the country. (AP Photo/Darron Cummings)

FILE - In this Monday, March 9, 2020 file photo, Tedros Adhanom Ghebreyesus, Director General of the World Health Organization speaks during a news conference on updates regarding on the novel coronavirus COVID-19, at the WHO headquarters in Geneva, Switzerland. After the new coronavirus erupted in China, the World Health Organization sprang into action: It declared an international health emergency, rushed a team to the epicenter in Wuhan and urged other countries to get ready and drum up funding for the response. Many analysts have praised the initial response by the world’s go-to agency on health matters. But now, governments have started to brush aside, ignore and criticize WHO recommendations on issues of public policy, like whether cross-border travel should be restricted or whether the public should wear masks. (Salvatore Di Nolfi/Keystone via AP, file)