Match the following terms and definitions. 1. protein shell of a virus that surrounds its nucleic acid
immunity
2. resistance to disease or poison
virus
3. vaccination; artificially stimulating antibodies to a disease
immunization
4. the act or practice of introducing a vaccine into the body as protection against disease
variolation
5. a remedial technique of purposeful infection in order to build immunity to the disease
capsid
6. a pathogenic microorganism dependent on living tissue for reproduction and growth
vaccination