Question

hepatitis a is typically transmitted through contaminated food or water.
true
false
question 48 (1 point)
hiv attacks the immune system, leading to acquired immunodeficiency syndrome (aids).
true
false
question 49 (1 point)
hepatitus b is primarily caused through contaminated blood or sexual contact.
true
false

Explanation:

First Question:

Hepatitis A is an infectious disease caused by the hepatitis A virus (HAV). Its main transmission route is the fecal - oral route, that is, it is often transmitted through contaminated food or water. So the statement "Hepatitis A is typically transmitted through contaminated food or water" is correct.

Second Question:

HIV (Human Immunodeficiency Virus) invades the human immune system, especially CD4 + T lymphocytes. After the immune system is damaged, it will gradually develop into acquired immunodeficiency syndrome (AIDS). So the statement "HIV attacks the immune system, leading to acquired immunodeficiency syndrome (AIDS)" is correct.

Third Question:

Hepatitis B is caused by the hepatitis B virus (HBV). Its main transmission routes include blood - borne transmission (such as transfusion of contaminated blood, use of contaminated medical equipment, etc.) and sexual contact transmission. So the statement "Hepatitis B is primarily caused through contaminated blood or sexual contact" (note: there is a spelling error of "Hepatitus" in the original question, it should be "Hepatitis") is correct.

Answer:

First Question: A. True
Second Question: A. True
Third Question: A. True