an easy explanation on these viral diseases

1. Viral diseases
CONTINUED
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2. LEARNING OBJECTIVES
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3. Measles
 It is a common disease of infants
 The patient suffers from cough and fever, but
afterwards small boils appear on his body i.e face
and chest
 The boils are light gray in color with red circles
around
 The disease gradually diminishes within 10 days
 Once it is over, the patient becomes immune to it
for the rest of his life
 Now vaccines are used for infants to lower its rate
of occurrence
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4. AIDS
 This is a fatal viral disease
 it stands for “Acquired immunity deficiency syndrome”
 It is caused by a virus called HIV (Human immunodeficient virus)
 This virus kills the white blood cells of patient as a result immune system is
destroyed
 The patient becomes victim to certain other diseases such as TB, typhoid,
pneumonia because of loss of natural resistance
 It is mostly spread through blood transfusion, contaminated syringes and direct
contact
 Its vaccine in experimental stage
This Photo by Unknown Author is licensed under CC BY-NC-ND This Photo by Unknown Author is licensed under CC BY-SA
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5. HEPATITUS
 It is disease of the liver caused by virus
 3 types : Hepatitis A, B and C
 The virus invades the liver cells and rapidly
destroys them
 If immune system of the patient becomes
active, the disease can be controlled
otherwise it is fatal
 It is characterized by jaundice, abdominal
pain, liver enlargement, fatigue, loss of
appetite and sometimes fever
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