Correct Answer - Option 4 : Plague
The correct answer is Plague.
Explanation:
- Any illness or health condition caused by a virus is referred to as a viral disease.
- The plague is an infectious disease that affects both humans and animals.
- It is caused by the bacteria Yersinia pestis, which is typically found in small mammals and their fleas and is found all over the world, including the United States.
- Fever, weakness, and a headache are among the symptoms.
- Infectious diseases are transmitted by infectious agents.
- Sunlight and drying are both effective at killing Yersinia pestis. When the bacteria are released into the air, the bacterium can survive for up to an hour, although it varies depending on the circumstances.
Thus, Plague disease is not caused by virus.
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Polio:
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Polio is a life-threatening viral disease caused by the poliovirus.
- Polio is spread through contaminated water or food, as well as through contact with an infected person.
- Many people infected with the poliovirus do not get sick and show no symptoms. Those who do become ill, on the other hand, develop paralysis and muscle weakness, which can sometimes be fatal.
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Aids:
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Acquired immunodeficiency syndrome (AIDS) is a viral disease caused by the human immunodeficiency virus (HIV).
- HIV (human immunodeficiency virus) is a virus that attacks the immune system of the body.
- AIDS is transmitted by sexual contact with the infected person, by sharing infected needles and also spread from the infected mother to her child through placenta.
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Conjunctivitis:
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Conjunctivitis or pink eye is a viral disease that is caused by allergies or bacterial or viral infection.
- It is the Inflammation or infection of the eyeball's outer membrane and the inner eyelid.
- Conjunctivitis is highly contagious and is spread through contact with infected people's eye secretions.
