COVID continues rampage across U.S. as vaccine rollout begins

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Alan Murcia comforts his wife, Corina Murcia, inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center in Houston, Texas, U.S., December 12, 2020.

Boxes containing the Pfizer-BioNTech COVID-19 vaccine are prepared to be shipped at the Pfizer Global Supply Kalamazoo manufacturing plant in Portage, Michigan, U.S., December 13, 2020. Morry Gash/Pool via REUTERS

Vaccination record cards are prepared for distribution as healthcare workers take part in a rehearsal for the administration of the Pfizer coronavirus disease (COVID-19) vaccine at Indiana University Health in Indianapolis, Indiana, U.S., December 11, 2020.

Healthcare personnel work inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

Healthcare personnel attend to a patient in cardiac arrest inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

Theresa Ogunjimi, a registered nurse, rests for a moment inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center, as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

A patient who died lays in a body bag inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

Gabriel Cervera calls the family of a patient who died, as healthcare personnel work inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center in Houston, Texas, U.S., December 12, 2020.

Healthcare personnel check to see if a patient still has a pulse inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

Healthcare personnel perform CPR on a patient inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

Gabriel Cervera watches a patient's heart rate drop while working inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.

UPS employees move one of two shipping containers of the Pfizer COVID-19 vaccine on ramp at Louisville Muhammad Ali International Airport in Louisville, Kentucky, December 13, 2020. Michael Clevenger/Pool via REUTERS

Boxes containing Pfizer's COVID-19 vaccine are unloaded from air shipping containers at UPS Worldport, in Louisville, Kentucky, December 13, 2020. Michael Clevenger/Pool via REUTERS

Boxes containing Pfizer's COVID-19 vaccine are unloaded from air shipping containers and scanned at UPS Worldport, in Louisville, Kentucky, December 13, 2020. Michael Clevenger/Pool via REUTERS

Sandra Lindsay, a nurse at Long Island Jewish Medical Center, is inoculated with the coronavirus disease (COVID-19) vaccine by Dr. Michelle Chester from Northwell Health at Long Island Jewish Medical Center in New Hyde Park, New York, U.S., December 14, 2020. Mark Lennihan/Pool via REUTERS

Members of the media are seen as Dr Yves Duroseau from Lennox Hill Hospital is inoculated with the Pfizer coronavirus disease (COVID-19) vaccine by Dr Michelle Chester from Northwell Health at Long Island Jewish Medical Center, in New Hyde Park, New York, U.S., December 14, 2020.

Alvino Flores watches television inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center in Houston, Texas, U.S., December 12, 2020.

Healthcare personnel work inside a coronavirus disease (COVID-19) unit at United Memorial Medical Center, as the United States nears 300,000 COVID-19 deaths, in Houston, Texas, U.S., December 12, 2020.