Neutralization _______________________. (Select All That Apply)

Neutralization _______________________. (Select all that apply)

A) is a cell-mediated immunoassay
B) was used more than 100 years ago to protect patients from the tetanospasmin toxin secreted by Clostridium tetani
C) is currently being used to help COVID-19 patients by administering convalescent plasma
D) is the process of antibody binding to a harmful antigen to prevent damaging effects on the host