Dr. Smith is working on a vaccine against Zika virus. She injects a group of volunteers with the newly designed vaccine. Two months later, one of the volunteers is exposed to Zika, so the volunteer's immune system encountered the virus. How did the response of the volunteer's T and B cells after encountering Zika virus compare to the response of the volunteer's T and B cells after the vaccine?
The volunteer's immune cells did not respond to the vaccine, so her encounter with the virus was the first time her T and B cells responded to Zika.
The volunteer's T and B cells became activated more quickly, and her B cells made smaller amounts of better quality antibodies.
The volunteer's T and B cells became activated more quickly, and her B cells made larger amounts of better quality antibodies.
The volunteer's T and B cells responded exactly the same way both times.