The virus that causes Acquired Immuno-Deficiency Syndrome (AIDS) is a. Hepatitis

Question

The virus that causes Acquired Immuno-Deficiency Syndrome (AIDS) is a. Hepatitis A virus b. Rhinovirus c. Candidiasis virus d. Human Immunodeficiency virus How are blood-borne pathogens spread? Select all that apply. a. Pathogen must be present b. Pathogen must live at least 48 hours c. Quantity of pathogen present is enough to cause disease d. Quantity of pathogen present must overwhelm a healthy immune system e. Pathogen enters through the correct entry site f. Pathogen must enter through more than one entry site g. Person is susceptible to the pathogen h. Person has never been previously immunized

Explanation / Answer

Question 5.

a) Pathogen must be present Without or in the absence of a pathogen the infection cannot occur.

c) Quantity of pathogen present must be enough to break through the first line of defense of the immune system. If they are in very less quantity they will be neutralized by the immune system.

d) The quanitity of pathogens is important to overcome the immune system.

e) The "chain of infection" states that the entry site of pathogens is important. If it enters through thr wrong site or portal to get into the biological system, it may get neurtralized and thus unable to infect the host.

g) The person or Host must be suceptible to the host. If the person has anti-bodies to the infecting pathogen then it would get neutralized and die instantly.

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