“Doctors are ordering antibody tests for people who are worried about waning immunity, but I see that as problematic,” said Alan Wells, medical director of clinical labs at the University of Pittsburgh Medical Center. “For a normal person, knowing your level eight months later [after their initial vaccine dosages] is of relatively little value.”

In general, the more antibodies, the better, Wells said. But even with a low level of antibodies months after exposure or receiving a vaccine, the body can mount a stout defense against the virus by generating new antibodies in response to a fresh infection. “There is more to your immune response than antibody levels,” Wells said.

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