Question
Answers

Which of the following is not a bacterial disease?
(A) Cholera
(B) Tuberculosis
(C) Anthrax
(D) Influenza

Answer
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Hint:
A disease which involves flu symptoms such as high body temperature, cold, body ache and others is not caused by bacteria.

Complete answer:
> The cholera causative agent is Vibrio cholerae. Vibrio cholerae is a bacteria.
> Tuberculosis is caused by bacteria called Mycobacterium tuberculosis.
> Anthrax is caused by bacteria called Bacillus anthracis.
> Influenza is caused by the flu virus.

Hence, the option (D) is the correct choice.

Additional Information:
Influenza is a viral infection that affects the respiratory system — the nose, mouth, and lungs. Influenza is generally referred to as flu, although it is not the same as stomach flu viruses that cause diarrhea and vomiting. Most people manage on their own and get rid of influenza. Other signs include fatigue, muscle aches, tiredness, general fainting and dry cough.
The key infection in the family is the flu virus. The physical features of the influenza viruses are that they are single-stranded, helical nucleocapsid-enclosed RNA. These viruses are enveloped on the outside. The influenza virus has a negative RNA genome. In order to replicate, this means that the virus must first produce the positive sense of mRNA in order to generate the necessary enzymes. Replication may take place after the enzymes have been translated.
Four forms of influenza viruses are present: A, B, C and D. Human influenza A and B viruses cause seasonal disease epidemics (known as the influenza season).

Note: Influenza is not categorised under bacterial disease as it is caused by a virus known as flu or influenza virus. This virus has RNA as its genome.