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Which of the following is not a viral disease?
A. Dengue
B. AIDS
C. Typhoid
D. Influenza

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Last updated date: 23rd Feb 2024
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Hint: There are many kinds of diseases caused by many sources. Probes are the inactive microorganisms which activate in their favourable conditions. They start to malfunction the host’s metabolism. The worst are the viruses as they take up the host’s machinery to replicate and are uncontrollable.

Complete answer: Any malfunction in our metabolism or the entry of any foreign material in our body can cause disease. It could be genetic, mental, physical, pathogenic etc.
Various microbes can enter our body and cause diseases like bacteria, virus, fungi etc. Some of these can be fatal if not treated on time.
Some diseases that are communicable to others via contact, air, water etc are communicable disease. They can virally spread like Coronavirus.
Let us see the various diseases in the options.
> Option A. Dengue: It is a viral disease which is caused by the bite of infected Aedes species. The person being affected the second time is at risk of developing severe disease. The symptoms include high fever, headache, rash, joint pain etc. there are medications for dengue.
> Option B. AIDS: It is a sexually transmitted viral disease. Acquired immune deficiency syndrome is caused by HIV – human immunodeficiency virus. The initial stages are sometimes difficult to detect as it includes flu-like illness. But gradually there are large lymph nodes, weight loss etc. It is caused by any kind of physical contact with the diseased.
> Option C. Typhoid: It is a fever that spreads through contaminated food or water. It is a common disease. It has symptoms like headache, stomach pain, vomiting etc. It is caused by the Salmonella species.
> Option D. Influenza: It is a viral disease caused by the influenza virus. It infects the nose, throat, lungs of the patient. It can spread when the diseased person sneezes, coughs or talks.

So the answer is option C: Typhoid

Note: Viruses are not live creatures. They do not have cells to carry out their functionality. They are not dead either as they take up the host’s mechanism. Dmitri Ivanovsky was the one to learn about them first. When they infect bacteria and replicate them, it is called a bacteriophage.