Skip to Content

Getting Answers: What happens if a person doesn’t receive a second dose of a COVID-19 vaccine?

Remaining Ad Time Ad - 00:00

TUCSON (KVOA)- As the country continues to wait for the approval of a COVID-19 vaccine, many viewers wanted to know what happens if they receive the first dose of a COVID-19 vaccine and then don't get the second dose.

Newly released documents state that Pfizer's coronavirus vaccine meets the FDA criteria for success.

The research data showed that the vaccine was 52% effective after the first dose and 95% effective after two doses, but what happens if someone doesn't get the second dose?

Deepta Bhattacharya, an associate professor of immunobiology at the University of Arizona, said that after a person gets the first vaccine their body will form memory cells. Then, after the second vaccination he said they will generate a much more rapid and robust immune response and build up antibody levels.

"The real question is you know how long will you be immune for and almost certainly without question that if you get that second dose you will be immune for much longer," he said. "The second issue is that what you really don't want is to get infected. It is mainly in your nose, it is not a lot of symptoms, you don't really notice it and you basically get someone infected who is at higher risk. Again, the more antibodies you have, the more robust of a immune response you have and that you will get after the second dose... the less likely it is that you can unknowingly give it to someone else," said Bhattacharya.

To view the research data released on the Pfizer coronavirus vaccine, click here.

Author Profile Photo

Priscilla Casper

Priscilla Casper is an anchor and multi-skilled journalist for News 4 Tucson. She anchors weekdays at noon and 5 p.m.

Skip to content