Question

51. An immunodeficiency is the lack of a properly functioning immune system and it's causes may be varied. 52·The reason why blood transfusions are given slowly is in case of a hypersensitivity to the donated blood. 53. A major factor in the re-emergence of vaccine-preventable diseases in the early 21st century has been due to a large number of people that do not vaccinate their children.

Answer 1

51. True statement as an immunodeficiency is the lack of a properly fuctioning immune system and it's causes may be varied like cold, drug and flower etc.

52. True as the blood trasfusions are given slowly by the tubing in case of a hypersensitivity to the donated blood.

53. False statement regarding the re-emergence of vaccine preventable disease as the reason is the bacterial resistance due to the mutation in the bacterial genome.