About Dr. Trisha Rettig: Dr. Rettig’s research focuses on the immune response to vaccination in space (in fact, she’s sent mice to space to study this!). Dr. Rettig is an expert on immunology, which is the study of the immune system.

Dr. Rettig gives an overview of what an immune response is, how it relates to vaccinations, and the difference between innate and acquired immunity. Laura and Dr. Rettig also discuss the specifics of titers and what breeders should consider when vaccinating their dogs.