Asked by b

Vaccines are a widely used public health tool that has helped control the spread of infectious diseases. Which best describes how vaccines work?

A vaccine results in the production of the appropriate antibodies that protect against future infection.

A vaccine is used to modify the DNA of a person, which will direct the cell’s immune system to fight the infection.

A vaccine helps control the symptoms of a particular infection while the body’s natural immune response fights to neutralize the pathogens causing the infection.

A vaccine benefits a person who is already sick by providing them with antibodies from somebody who has already had the illness.

All Answers 1

Answered by GPT-5 mini AI
A vaccine results in the production of the appropriate antibodies that protect against future infection.

Brief note: Vaccines stimulate the immune system to make antibodies and memory immune cells (and often T‑cell responses) so the body can respond faster and stronger on future exposure. They do not change a person’s DNA, are primarily preventive (not for treating active illness), and are distinct from passive transfer of antibodies.