Page 39 - ScienceStd4
P. 39
Prevention of chickenpox
Chickenpox can be prevented by avoiding sharing clothes with
an infected person and by keeping the body and clothes clean.
Also, a patient should use antiseptic when bathing or washing
FOR ONLINE READING ONLY
clothes. This will help reduce the risk of infection for those who
come into contact with the clothes of the patient.
Exercise 4
1. How does chickenpox spread from one person to another?
2. How can you identify a person with chickenpox?
3. What can you do to stop the spread of chickenpox?
Tuberculosis
Tuberculosis (TB) is a disease caused by bacteria. It mostly
affects the lungs. However, it can also affect other parts of
the body, such as the spine, bones and kidneys. TB spreads
through the air when an infected person coughs or sneezes.
Spitting can also cause the bacteria to spread.
Symptoms of tuberculosis
Symptoms of tuberculosis include the following:
(a) Coughing for more than two weeks;
(b) Chest pain;
(c) Fevers and sweating at night;
(d) Rapid loss of weight;
(e) Coughing up blood; and
(f) Loss of appetite.
32
14/01/2025 18:38
SCIENCE AND TECHNOLOGY STD 4.indd 32
SCIENCE AND TECHNOLOGY STD 4.indd 32 14/01/2025 18:38
