Importantly, the Cornell University-funded study found that both natural immunity and vaccines offer "strong and durable protection" against Covid-related hospitalization and death.

News reports say the Biden administration is currently weighing a plan that would allow all adults to receive a second Covid-19 booster, citing concerns from White House chief medical adviser Dr. Anthony Fauci about the spike in hospitalizations "fueled by the extremely contagious omicron subvariants BA.4 and BA.5."

Currently second booster shots are only offered to individuals over the age of 50.

Meanwhile, discussion of a potential fifth shot is already underway. During a recent television appearance, CNN host Don Lemon asked CNN medical analyst Jonathan Reiner if such a scenario is likely.

LEMON: "That was my next question, I'm giving away my age because I've already had four shots, I've had two boosters, so I'm over 50."