Question 22 Question 23 Question 24 Several theories have been put forward to explain the first emergence of HIV virus. Name one such theory about the origin of HIV. Answer: square will damage the immune system and when this happens, one become vulnerable to illness often referred to as (1.SHORTANSWER:=oppotunistic)infections that a healthy immune system would usually be able to fight off, and this leads to a condition known as(15HORTANSWER-AIDS) Answer: square State one group of opportunistic infections Answer: square

Question 22:<br />Several theories have been put forward to explain the first emergence of the HIV virus. Name one such theory about the origin of HIV.<br /><br />Answer: One theory suggests that HIV originated from a simian immunodeficiency virus (SIV) that was transmitted to humans through the hunting and consumption of bushmeat by primate handlers or hunters.<br /><br />Question 23:<br />State one group of opportunistic infections.<br /><br />Answer: One group of opportunistic infections is Pneumocystis pneumonia (PCP).