What is the primary response when encountering a pathogen for the first time called?

Step-by-step solution

Acquired immunity is characterized by being pathogen specific, meaning that it is specific to a particular pathogen encountered by the body. The primary response when encountering a pathogen for the first time is called the primary response and is of low intensity. The primary and secondary immune responses are carried out with the help of two special types of lymphocytes present in our blood, i.e., B-lymphocytes and T-lymphocytes.B-lymphocytes produce an army of proteins in response to pathogens in our blood to fi