SEATAC, WA – NOVEMBER 29: A traveler passes through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers prepare to depart from Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers wait in line for security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers wait in line for security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers wait in line for security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: A sign warns travelers from using drinking fountains at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: A traveler passes through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: A vending machine containing personal protective equipment is seen at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass by a sign advertising hand sanitizer at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: A traveler passes through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)SEATAC, WA – NOVEMBER 29: Travelers pass through security screening at Seattle-Tacoma International Airport on November 29, 2020 in SeaTac, Washington. Public health experts warn that COVID-19 cases may surge following holiday travel, as the U.S. surpasses 4 million cases so far this month. (Photo by David Ryder/Getty Images)
