Workers stand on artificial sand or crushed dolomite, dumped on a portion of Manila Bay as part of the government's efforts to rehabilitate and beautify the polluted coastline, in Manila, Philippines, September 10, 2020. Picture taken September 10, 2020. REUTERS/Eloisa Lopez

A worker stands on artificial sand or crushed dolomite, dumped on a portion of Manila Bay as part of the government's efforts to rehabilitate and beautify the polluted coastline, in Manila, Philippines, September 4, 2020. Picture taken September 4, 2020. REUTERS/Eloisa Lopez

Workers walk on artificial sand or crushed dolomite, dumped on a portion of Manila Bay as part of the government's efforts to rehabilitate and beautify the polluted waters, in Manila, Philippines, September 10, 2020. Picture taken September 10, 2020. REUTERS/Eloisa Lopez

Locals take pictures from a footbridge overlooking the construction of the Manila Bay beach, where artificial sand or crushed dolomite were dumped as part of the government's efforts to rehabilitate and beautify the polluted coastline, in Manila, Philippines, September 10, 2020. Picture taken September 10, 2020. REUTERS/Eloisa Lopez TPX IMAGES OF THE DAY

A "no swimming" signage is placed on the newly built Manila Bay beach, where tons of artificial sand or crushed dolomite were dumped as part of the government's efforts to rehabilitate and beautify the polluted coastline, in Manila, Philippines, September 19, 2020. REUTERS/Eloisa Lopez

The newly-built Manila Bay beach, where tons of artificial sand or crushed dolomite were dumped as part of the government's efforts to rehabilitate and beautify the polluted coastline, is pictured in Manila, Philippines, September 19, 2020. REUTERS/Eloisa Lopez

U.S. Army Gen. Gustave F. Perna, who will reportedly co-lead an administration effort dubbed "Operation Warp Speed" to find a vaccine for the coronavirus disease (COVID-19), listens as U.S. President Donald Trump speaks to reporters during a news conference in the Brady Press Briefing Room at the White House in Washington, U.S., September 18, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump turns to U.S. Army Gen. Gustave F. Perna, who will co-lead an administration effort dubbed "Operation Warp Speed" to find a vaccine for the coronavirus disease (COVID-19), as he speaks to reporters during a news conference in the Brady Press Briefing Room at the White House in Washington, U.S., September 18, 2020. REUTERS/Kevin Lamarque

People wearing protective face masks walk in a busy street in Paris as France reinforces mask-wearing in public places as part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across France, September 18, 2020. REUTERS/Gonzalo Fuentes

People wearing protective face masks walk in a busy street in Paris as France reinforces mask-wearing in public places as part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across France, September 18, 2020. REUTERS/Gonzalo Fuentes

People wearing protective face masks walk in a busy street in Paris as France reinforces mask-wearing in public places as part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across France, September 18, 2020. REUTERS/Gonzalo Fuentes

People wearing protective face masks walk in a busy street in Paris as France reinforces mask-wearing in public places as part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across France, September 18, 2020. REUTERS/Gonzalo Fuentes

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

Israeli military personnel work at the Israeli Defence Force (IDF) Corona Task Force Headquarters as they conduct epidemiological investigations as part of the army's effort to trace chains of infection to curb the spread of the coronavirus disease (COVID-19), a day before a nationwide lockdown begins, in Ramle, Israel September 17, 2020. REUTERS/Ronen Zvulun

A reception table for guests at Marie Pierre Louis's and Joseph Ronel Cherilus' wedding, is laid out in the courtyard of Alliance Francaise where Louis and Cherilus' wedding reception was held, in Jeremie, Grand'Anse, Haiti, December 21, 2017. "It's partly about expressing your social status," said Haitian sociologist Tamas Jean Pierre. "Even the poorest women make an effort to have a beautiful wedding." REUTERS/Valerie Baeriswyl SEARCH "HAITIAN WEDDINGS BAERISWYL" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Admiral Brett Giroir, Assistant Secretary For Health Department of Health and Human Services, listens during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, holds up his face mask as he speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Subcommittee Chairman Roy Blunt (R-Mo.) listens during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Robert R. Redfield, Director for Centers for Disease Control and Prevention, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Jerry Moran (R-Kan.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Jerry Moran (R-Kan.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Jerry Moran (R-Kan.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Chris Murphy (D-Conn.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Chris Murphy (D-Conn.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Lindsey Graham (R-S.C.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Bob Kadlec, Assistant Secretary For Preparedness And Response Department of Health and Human Services, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Bob Kadlec, Assistant Secretary For Preparedness And Response Department of Health and Human Services, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Lindsey Graham (R-S.C.) listens during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Lindsey Graham (R-S.C.) speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Admiral Brett Giroir, Assistant Secretary For Health Department of Health and Human Services, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Tammy Baldwin (D-Wis.) listens during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Bob Kadlec, Assistant Secretary For Preparedness And Response Department of Health and Human Services, speaks during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator James Lankford (R-Okla.) attends a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator James Lankford (R-Okla.) attends a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Senator Cindy Hyde-Smith (R-Miss.) listens during a hearing with the Senate Appropriations Subcommittee on Labor, Health and Human Services, Education, and Related Agencies, on Capitol Hill in Washington, U.S., September 16, 2020. Anna Moneymaker/Pool via REUTERS

Sen. Chris Murphy speaks at a Senate Appropriations subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Director of Center for Disease Control and Prevention Dr. Robert Redfield speaks at a Senate Appropriations subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Director of Center for Disease Control and Prevention Dr. Robert Redfield speaks at a Senate Appropriations subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Director of Center for Disease Control and Prevention Dr. Robert Redfield speaks at a Senate Appropriations subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Director of Center for Disease Control and Prevention Dr. Robert Redfield speaks at a Senate Appropriations subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Director of Center for Disease Control and Prevention Dr. Robert Redfield speaks at a Senate Appropriations subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Democratic U.S. presidential nominee and former Vice President Joe Biden participates in a briefing with public health experts on efforts to develop a vaccine for the coronavirus disease (COVID-19) in Wilmington, Delaware, U.S., September 16, 2020. REUTERS/Jonathan Ernst

Democratic U.S. presidential nominee and former Vice President Joe Biden takes notes while participating in a briefing with public health experts on efforts to develop a vaccine for the coronavirus disease (COVID-19) in Wilmington, Delaware, U.S., September 16, 2020. REUTERS/Jonathan Ernst

Democratic U.S. presidential nominee and former Vice President Joe Biden takes notes while participating in a briefing with public health experts on efforts to develop a vaccine for the coronavirus disease (COVID-19) in Wilmington, Delaware, U.S., September 16, 2020. REUTERS/Jonathan Ernst

Democratic U.S. presidential nominee and former Vice President Joe Biden participates in a briefing with public health experts on efforts to develop a vaccine for the coronavirus disease (COVID-19) in Wilmington, Delaware, U.S., September 16, 2020. REUTERS/Jonathan Ernst

Centers for Disease Control and Prevention Director Dr. Robert Redfield puts his mask back on after speaking at a Senate Appropriations Subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS

Centers for Disease Control and Prevention Director Dr. Robert Redfield puts his mask back on after speaking at a Senate Appropriations Subcommittee hearing "Review of Coronavirus Response Efforts" on Capitol Hill, Washington, U.S., September 16, 2020. Andrew Harnik/Pool via REUTERS