Question

please answer numbers 43 to 48

43. Antigens that trigger hypersensitivity reactions are actually called allergens b. exogenous antigens c. pollens d endogenous antigens e. b& e 44. Disease constantly in a population are called a epidemie b chronic clatent d. endemic e none of the above 45. Apparently healthy people who may transmit a pathogen they harbor are called a vectors bfomites c. vehicles d. carriers 46. The period of time between exposure to an agent and the onset of disease signs and symptoms is called the a prodromal phase b. decline phase c. incubation period d. lag phase 47. Hemolytic disease of a newborn can result from a. An Rh mother with an Rh fetus b. An Rh mother with an Rh fetus c. An AB mother with a B fetus d. An AB mother with an O fetus e. None of the above 48. Sjogren's syndrome is an autoimmune disorder where the tear duct glands are no longer producing tears so the patient experiences dry eye. One of the treatments for Sjogren's syndrome is cyclosporine, an immunosuppressive agent. Based on this information, cyclosporine a activates histamine production b. directly deactivates neutrophils c. activates leukocidin activity d. indirectly deactivates Tc cells e. activate macrophage activity

Answer 1

Answer 43. a. Allergens. 44.d. Endemic. 45. D. Carriers. 46.c. Incubation period. 47. b. An Rh- negative mother with The+ positive fetus. 48. d. Indirectly deactivate Tc cells.