The quarterback said he has an "allergy to an ingredient that's in the mRNA vaccines" that are made by Pfizer-BioNTech and Moderna.
He didn't immediately detail the allergy that blocks him from both the Pfizer and the Moderna vaccines. He also said he feared possible adverse effects from the Johnson & Johnson vaccine.
The number of people who have had anaphylactic reactions to Covid vaccines is very small, about two to five cases per million doses, said Dr. Niraj Patel of Atlanta, chair of the American College of Allergy, Asthma and Immunology’s Covid-19 Vaccine Task Force.
“Putting this into perspective, you’re as likely to get struck by lightning as you are to have an allergic reaction to a Covid vaccine,” he said.
Before the season started, Rodgers was asked if he had been vaccinated and he said he had been "immunized." In the same answer, he said of unvaccinated players, "I’m not gonna judge those guys," seeming to imply he had received the jab.
Rodgers on Friday insisted he wasn't lying in that answer, but conceded he didn't want to answer more questions about vaccination.
"I wanted it to go away," he admitted. "Everyone on the squad knew I was not vaccinated. Everyone in the organization knew I wasn’t vaccinated. I wasn’t hiding from anybody. I was trying to minimize and mitigate having this conversation going on and on.”
He invoked the memory of Martin Luther King Jr., claiming the slain civil rights leader would have agreed that he had a "moral obligation to object to unjust rules and rules that make no sense."
The NFL is investigating the Packers and Rodgers for possibly breaking Covid safety protocols.
Rodgers thanked the hosts of the sports talk show for allowing him to speak at length Friday.
"I realize I'm in the crosshairs of the woke mob right now," he said. "So before my final nail gets put in my cancel culture casket, I think I'd like to set the record straight on so many of the blatant lies.”
His absence Sunday in Kansas City could have a huge impact on a game between the Chiefs, fighting for their playoff lives, and the Packers, in the running for a No. 1 seed.
Kansas City opened the week as a 1-point favorite, but after Rodgers was ruled out, oddsmakers put the Chiefs as 7.5-point picks.
Rodgers could be back on the field in time for Packers' Nov. 14 game against the Seattle Seahawks.
Packers coach Matt LaFleur on Friday declined to discuss Rodgers' interview and insisted he's not familiar with ivermectin: “I don’t even know what that word or term is."
More than 193 million Americans have been fully vaccinated, which accounts for more than 68 percent of the U.S. population that’s 12 and older.