Antibody lifespan raises questions on vaccine protection

The lifespan of coronavirus antibodies is raising questions on how long a vaccine would protect you against an infection.

Researchers say they're finding Covid antibodies have a half life of 73 days.

WOULD PROTECT YOU AGAINST ANINFECTION.RESEARCHERS SAY THEY'RE FINDINGCOVID ANTIBODIES HAVE A HALFLIFE OF 73 DAYS.THAT MEANS HALF OF THEANTIBODIES YOUR BODY MAKES WILLDISAPPEAR AFTER THAT.HOWEVER-- YOUR CELLS DEVELOP AMEMORY - SO THEY KNOW HOW TOMAKE THEM AGAIN.IF SOMEONE DID BECOME INFECTEDBY CORONAVIRUS MONTHS AFTERBEING VACCINATED-- THATINFECTION WOULD LIKELY BE VERYMILD.RESEARCHERS SAY THE VACCINE MAYALSO PRODUCE ANTIBODIES WITH ALONGER LIFESPAN.RIGHT NOW TESTING FOR A VACCINEIS HEADING INTO THE FINALSTAGES.