Like any medicine you take, health officials say there is a possibility of side effects.
"It's just like any other medication. You do not know how your body is going to react," said Staceee Hoye, the Clinical Administrator of OCCHD.
The first and most common adverse side effect after getting your shot is anaphylaxis or an allergic reaction.
"It is treatable, so that is why we sit people and observe them after the vaccine," said James Kirk, the Director of Infection Prevention, SSM St. Anthony's
If everyone in the United States were to get the vaccine, 2% of the population would experience this. There is a greater chance of winning an Olympic medal.
The Johnson and Johnson vaccine has been a center of concern with two adverse side effects seen after getting the shot Thrombosis with thrombocytopenia syndrome and Guillain-Barré Syndrome.
Both are seen in a very small group of people.
"Janzen is not the only vaccine out there. So, you would want to look into an mRNA vaccine," said Hoye.
Some remain concerned about Guillain- Barre Syndrome causing paralysis.
"Most people do recover there is different severity, but it is a minimal risk in the great scheme of things," said Kirk.
"When you start to weigh the risk and benefit, the benefit definitely outweighs that risk," said Hoye.
The last adverse side effect is myocarditis heart inflammation occurring mainly in young and teenage boys after the second dose of a vaccine, but those in the trial ages 5-11 did not develop this side effect.