Does covid-19 antibodies prevent infection?

IF YOU HAVE ANTIBODIES FOR COVID -19 OR ANYONE HAS THAN EITHER YOU HAVE BEEN EXPOSED OR HAVE HAD COVID-19 LIKE I HAD A YEAR AGO. I HAVE ANTIBODIES STILL A YEAR LATER AND RECEIVED THE VACCINE BECAUSE I STILL COULD GET COVID AGAIN BUT NOT AS SEVERE. HAVING ANTIBODIES WILL PREVENT YOU FROM A SEVERE CASE OF COVID-19 BUT YOU STILL CAN CONTRACT IT. GET VACCINATED FOR SAFETY AND PEACE OF MIND.

The vaccines seem to excel in decreasing hospitalizations and death, besides helping to prevent the disease and mitigating severity if it does occur.