Give three examples of viral diseases .Mention the mode of infections and its preventive
measures. For Class 9. Five mark questions
Answers
Answer:
polio tv and colera etc
AIDS due to hivs virus
Answer:
Viral diseases are infections caused by viruses. Different types of viruses cause different infections. Common cold is the most common type of viral infection that is caused by infections in the respiratory tract. Other viral diseases include:
Chickenpox
Herpes
Influenza
AIDS
Mumps
Measles
Viral Hepatitis
Viruses also infect plants. Let us have an overview of the different types of viral diseases, their causes, symptoms and prevention methods.
Also Read: Bacterial Diseases
Virus
Types of Viral Diseases
There are different types of viral diseases. These include:
Viral Diseases in Humans
Virus
Common cold
Rhinovirus
Smallpox
Variola virus
Rabies
Rabies lyssavirus
Hepatitis
Hepatitis A virus, hepatitis B virus, Hepatitis C virus
Measles
Rubeola virus
Poliomyelitis
Poliovirus
Influenza
Influenza virus (RNA virus)
Encephalitis
Herpes Simplex Virus
Mumps
Paramyxovirus
Causes of Viral Diseases
Viral diseases are mainly caused when a virus enters the human body and uses the host machinery to reproduce. If the body’s immune system fails to fight against viruses, it multiplies and spreads to other cells causing infections.
Symptoms of Viral Diseases
Following are the important symptoms of viral diseases:
Flu-like symptoms such as fever, fatigue, sore throat, headache.
Irritability
Rashes
Malaise
Sneezing
Swollen tonsils
Excessive weight loss
Treatment of Viral Diseases
Viral diseases can be treated in the following ways:
Proper nutrition
Medication for fever, body ache and pain
Proper rest
Drinking more fluids
Human papillomavirus that leads to cervical dysplasia can be treated by removing the abnormal cells on the cervix of a female, surgically.
Also Read: Infectious Diseases
To know more about viral diseases, their causes, symptoms and treatment methods, keep visiting BYJU’S website or download BYJU’S app for further reference.
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