Question

17) Antiserum may be described as: Blood serum that contains antibodies b Blood serum thal contains antigens Blood serum that contain an antibiotio d) Bovine blood serum prior to injection of an antigen e None of the above 8) The sources of antiserum are: Chemical synthesis in the laboratory b) Blood from animal that has developed antibodies to a specific antigen eGamma globulin separated from pooled hunan blood All of the above Only B and C above d) 9) The major advantage of antiserum is a t is quickly and easily produced b) 1 provides circulating antibodies immediately e) Can be administered orally d Allof the above e None of the above 0 A viral vaccine for the common cold probably would not be beneficial because: Apure culture cannot be frown in tissue cultures Amultiplicity of viral agents is responsible for the common cold Immunity is of brief duration b) All of the above Diagnosis of infectious diseases may include the following levels: e Isolation and identification of the causative agent d None of the above 21) Clinical b) Antibody response d) All of the above Only A and B above 22) The lower respiratory tract is usually kept free of microorganisms by The combined action of mucus secretion and ciliary action b) Antibiotics eFrequent use of nose drops d) All of the above e None of the above

Answer 1

17. Option a is the correct answer. Antiserum is blood serum in which specific antibodies against specific antigen are present.

18. Option b is the correct answer. Antiserum is prepared by injecting serum with specific antigens in animals.

19. Option b is the correct answer. Antiserum contains antibodies which is directly injected into blood circulation.

20. Option a is the correct answer. Cold viral strain is continously changing through multiplication

21.Option d is the correct answer. Diagnosis can be made at clinical level, antobody response and by identification of causative agent.

22. Option a is the correct answer. Mucus and cilliary action expel the microorganism through coughing.