I’VE BEEN SUGGESTING THIS FOR A WHILE: Why You Shouldn’t Worry About Studies Showing Waning Coronavirus Antibodies. “Experts say it’s normal for levels of antibodies to drop after clearing an infection, and that they represent just one arm of the immune response against a virus. . . . Antibodies also represent only one arm of the immune response, albeit the one that can most easily be measured. There are at least three other branches of the immune system that can fend off illness, so antibody levels don’t present the full picture.”