COVID-19 REGENERON (informational only)

Antibodies

Antibodies are one of your body’s natural defense systems against foreign attackers. When your body detects foreign intruders (like bacteria or viruses), your immune system makes antibodies that recognize them. These specific antibodies attach to the foreign intruders and target them for destruction. To treat or prevent disease, scientists can either use antibodies from the blood of people who have recovered from the infection (i.e., “convalescent plasma”) or use antibodies made in a lab that will attach to and stop (“neutralize”) the foreign intruders.

Antibodies created to attach to different molecules in the body (i.e., not foreign intruders) can also be used to treat disease, for example, by turning down your immune response to stop it from overreacting and causing damage to the body (a phenomenon known as “cytokine storm”).