Inside a hard-hit COVID-19 ward in Houston

Healthcare workers treat patients infected with the coronavirus at United Memorial Medical Center in Houston, more

A healthcare workers treats a patient infected with the coronavirus on New Year's Day at United Memorial Medicmore

Duc Nguyen speaks with his wife using FaceTime on New Year's Day from inside the coronavirus unit at United Memore

Gabriel Cervera and Sanjana Krishnan work on the schedule for 2021 inside the coronavirus unit at United Memormore

Nurses look at the nightly schedule during a shift change as healthcare workers treat patients infected with tmore

Gabriel Cervera FaceTimes his family in Mexico while he and other healthcare workers treat patients infected wmore

Manuel Espinoza speaks with his wife to celebrate New Year's Day from inside the coronavirus unit at United Memore

Monitors screens from video cameras showing patients are seen reflected at United Memorial Medical Center in Hmore

Beads of sweat gather on the face shield of a healthcare worker as she treats patients infected with the coronmore

Healthcare workers change the tube on an intubated patient infected with the coronavirus at United Memorial Memore

Healthcare workers treat a patient infected with COVID-19 at United Memorial Medical Center in Houston, Texas,more

Gabriel Cervera and Sanjana Krishnan take a break from treating coronavirus patients at United Memorial Medicamore

Tanna Ingraham places the body of a patient who died due to the coronavirus inside a body bag, at United Memormore

Tanna Ingraham places a sheet over the body of a patient who died inside the coronavirus unit at United Memorimore

A sheet covers the body of a patient who died in the coronavirus unit at United Memorial Medical Center in Houmore

Consuelo Castellanos is treated for the coronavirus at United Memorial Medical Center in Houston, Texas, Decemore

Alonso Lugo helps a patient try to stand inside the coronavirus unit at United Memorial Medical Center in Housmore

Gabriel Cervera briefly rests on an empty hospital bed within the coronavirus unit at United Memorial Medical more

Dr. Joseph Varon looks at table filled with donuts, which were delivered to the coronavirus unit, at United Memore

A healthcare worker wears protective equipment inside the coronavirus unit at United Memorial Medical Center imore

Dr. Joseph Varon treats a coronavirus patient at United Memorial Medical Center in Houston, Texas, December 29more

An intubated patient is seen as healthcare workers treat coronavirus patients at United Memorial Medical Centemore

Healthcare workers place a femoral arterial line in a patient infected with the coronavirus at United Memorialmore

Healthcare workers treat patients infected with the coronavirus at United Memorial Medical Center in Houston, more

A healthcare worker places a BiPAP machine on a patient infected with the coronavirus at United Memorial Medicmore

A healthcare worker communicates with a patient who is asking to go home inside the coronavirus unit at Unitedmore

Gabriel Cervera wears protective equipment as healthcare workers treat coronavirus patients at United Memorialmore

A healthcare worker helps as an endoscopy is performed on a patient at United Memorial Medical Center in Houstmore

A healthcare worker waits with Juana Negrete, who is being picked up after she was discharged from the COVID-1more

A healthcare worker wheels a bed to meet a patient who is being admitted into the COVID unit at United Memoriamore

A healthcare worker treats Manuel Espinoza who is infected with the coronavirus at United Memorial Medical Cenmore

A patient is seen as healthcare workers treat patients infected with the coronavirus at United Memorial Medicamore

A healthcare worker places a BiPAP machine on a patient infected with the coronavirus at United Memorial Medicmore

A healthcare worker is seen while treating patients infected with the coronavirus at United Memorial Medical Cmore

A healthcare worker treats a patient infected with the coronavirus at United Memorial Medical Center in Houstomore

Gabriel Cervera tries to wake a patient who was extubated in the coronavirus unit at United Memorial Medical Cmore

Healthcare workers go over patients' medical records inside the coronavirus unit at United Memorial Medical Cemore

Dr. Varon and a team of healthcare workers treat patients infected with the coronavirus at United Memorial Medmore

Gabriel Cervera tries to help a patient who was extubated regain movement in the coronavirus unit at United Memore

Gabriel Cervera treats a patient infected with the coronavirus at United Memorial Medical Center in Houston, Tmore

Dr. Varon fills a syringe with water as healthcare workers treat patients infected with the coronavirus at Unimore

Healthcare workers treat a patient who was extubated in the coronavirus unit at United Memorial Medical Centermore