Answer Happy

What is the purpose of vaccines? O prevent disease in vaccinated person O decrease severity of disease in vaccinated person O provide herd immunity O all of the above QUESTION 8 Which of the following is an advantage (pro) of using a subunit vaccine? O no actual chance of infection. O induces hypersensitivity O cheap to produce O all of the above are advantages of subunit vaccines QUESTION 9 HIV tests typically use an ELISA to check whether a patient is infected What is necessary for an ELISA to work? O bacteriophage O antibody attached to an enzyme O primers complementary to HIV to designate region to be amplified O enterotube with multiple biochemical tests QUESTION 10 If you need to count the number of white blood cells in a patient to check for immune response to an infection, which of the following tests would you use? O indirect ELISA Oflow cytometry O limulus amebocyte lysate (LAL) assay O direct ELISA