Some of the world’s largest vaccine-makers hope to bolster public confidence in a yet-to-arrive COVID-19 vaccine, pledging to follow strict safety protocols in the rush to respond to the pandemic. Here, a nurse practitioner administers a dose of flu vaccine in Key Biscayne, Fla.

KEY BISCAYNE, FLORIDA – SEPTEMBER 03: Enbal Sabag, a Nurse Practitioner, wears personal protection equipment as she administers a flu vaccination to Noel Janzen at the CVS pharmacy and MinuteClinic on September 03, 2020 in Key Biscayne, Florida. Flu shots are available at the nearly 10,000 CVS pharmacies and approximately 100 MinuteClinic locations across the country. Heath experts say getting the flu shot this year is important because the dangers of having COVID-19 and the flu simultaneously are still unknown. (Photo by Joe Raedle/Getty Images)