Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

Which type of vaccine is prepared through chemical or heat application to the pathogen, killing it so that it cannot cause disease?
A. inactivated
B. live, attenuated
C. toxoid
D. subunit