Question

53. A communicable disease that can be easily transmitted from person to person is which type...

53. A communicable disease that can be easily transmitted from person to person is which type of disease?    A. contagious              

B. iatrogenic                     

C. acute                             

D. nosocomial

54. Which of the following is the essential criterion for defining a "carrier state"?             

A. Presence of disease agent in the body                                                                                                                               

B. Absence of recognizable symptoms and signs of the disease                                                                                                                                     

C. Shedding of the disease agent in the discharges of secretions                                                                                            

D. All of the above

55. Which of the following applies to hyaluronidase?                                                                                                  

A. It acts as a spreading factor.                                                                                                                                       

B. It promotes blood clotting.                                                                                                                                             

C. It is an example of an adhesin.    D. It is produced by immune cells to target pathogens.

Homework Answers

Answer #1

53. (A) Contagious

A contagious disease is a subset category of trasmisssible disease which are transmitted to other persons, either by physical contact with the person suffering the disease, or by casual contact with their secretions or objects touched by them or airborne route among other routes.

54. (D) All of the above

Carrier state is a case in which a person or organism infected with an infectious disease agent but displays no symptoms. carriers can transmit it to others or develop symptoms in later stages of the disease.

55. (A) It acts as a spreading factor

Since hyaluronidase are enzymes that catalyze the breakdown of hyaluronic acid in the body, they may incrase the permeability to tissue to fluids. Hyaluronidase in snake and insect venom is thought to function as a spreading factor by degradinng host hyaluronic acid, thus allowing spreading of toxin.

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