Biology · Science General

Disease Causative Agents

2,531 Questions

Disease causative agents questions test your understanding of viral, bacterial, and fungal infections, along with their transmission methods. These are common topics in general science sections of SSC and railways exams. Practice these questions to accurately identify disease pathogens and symptoms.

Viral diseasesFoodborne illnessesDisease transmission methodsExtrinsic disease factorsCommon pathogens

Disease Causative Agents Questions

Multiple choice

Cholera causing organism is

  1. spiral shaped

  2. comma-shaped

  3. rod shaped

  4. linear
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cholera is caused by Vibrio cholerae which is a Gram-negative, comma-shaped bacteria.

Multiple choice

The causative agent of typhus fever belongs to the category of

  1. spirochaetes

  2. actinomycetes

  3. rickettsia

  4. mycoplasma
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

These are a group of coccoid or rod shaped bacteria much smaller than other classical bacteria. They are non-motile and reproduce by fission. Most of them are obligate parasites. Some familiar examples are Rickettsia prowazeki which causes typhus fever.

Multiple choice

Avian flu is also known as

  1. Swine flu

  2. Bird flu

  3. Eye flu

  4. Dengue fever

  5. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Avian influenza- known informally as avian flu or bird flu refers to 'influenza caused by viruses adapted to birds. The version with the greatest concern is highly pathogenic avian influenza (HPAI)

Multiple choice

Which of the following viruses causes the green monkey disease?

  1. Marburg virus

  2. Ebola virus

  3. Mumps virus

  4. Rubulavirus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Marburg virus or simply Marburg is the common name for the genus of viruses Marburgvirus, which contains one species, Lake Victoria Marburgvirus. The virus causes the disease Marburg Hemorrhagic Fever (MHF), also referred to as Marburg Virus Disease, and previously also known as green monkey disease due to its primate origin.

Multiple choice

Polio is caused by

  1. enterovirus

  2. paramyxovirus

  3. varicella

  4. rubeola
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the enterovirus.