What is the first step in producing a vaccine against an infectious disease? A inactivating the disease agent
B testing for vaccine side effects
C finding and isolating the disease agent
D isolating antigens

Select the correct answer. for their summer holiday, jane and her family are visiting places surrounding the mediterranean sea. which type of biome is jane and her family visiting? a. rainforest b. shrubland c. tundra d. coniferous forest reset next