,PYC2605 Exam
Study Notes
Contains:
• Detailed notes on all Study Units
• Learning Units 1 -23
, Theme 1
Knowing the Challenge
Throughout history, humans have been challenged by many
different health issues. With the development of vaccines for
many life-threatening and crippling diseases (such as for rabies,
smallpox and polio) and the discovery of antibiotics, humans
have gradually become used to the idea that most diseases
could be prevented or treated. However, in the last two decades
of the 20th century, this false sense of security was shattered by
HIV and Aids.
So how can we meet the challenge posed by HIV and Aids?
This is the question we investigate in Theme 1. We do this by
Structure of Nevirapine
dealing with six basic questions:
Where does Aids come from?
What is HIV and how does it attack the body?
How is HIV transmitted from one person to another and how can we prevent it?
What are the symptoms and diseases associated with HIV infection?
How can HIV infection or Aids be diagnosed?
How can HIV infection and Aids be managed with antiretroviral therapy (ART)?
Each one of these questions will be discussed in a separate learning unit and, in this way, we will start to
suggest possible answers to the Aids challenge.
INSTRUCTIONS – HOW TO NAVIGATE
Throughout the learning units you will find links that will help you to navigate through the text.
These links are clearly marked in blue or purple.
They are called [NEXT]; [BACK]; [ACTIVITY]; [FEEDBACK] or [ASSESSMENT]
Click with your mouse on these links to navigate quickly through the learning units and to avoid
getting lost.
At the end of each learning unit you can click on the link to go directly to the next learning unit.
Please note that this link will work only inside MyUnisa and NOT if you are working offline.
At the top of each learning unit a block will indicate if the learning unit should be studied by both
tracks or by the Counselling or Care track only. Please remember which track you have chosen.
Now click on [NEXT] to go to the beginning of Learning Unit 1.
, Learning Unit 1:
HIV and Aids: A brief history
BOTH
TRACKS
[NEXT – TABLE OF CONTENTS]