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

The Indian tick typhus is also called

  1. Rocky mountain spotted fever

  2. Trench fever

  3. Dengue fever

  4. DKA

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Indian tick typhus is a form of spotted fever caused by Rickettsia conorii, which is clinically similar to Rocky Mountain spotted fever. While the specific causative agents differ, they belong to the same group of tick-borne rickettsial diseases.

Multiple choice

A “silent killer” is

  1. hypertension

  2. tuberculosis

  3. cholera

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

Hypertension is frequently referred to as the silent killer because it often presents with no symptoms until significant damage has occurred to organs like the heart, brain, or kidneys.

Multiple choice

Shick test is related to ____?

  1. Poliomyelitis

  2. Diphtheria

  3. Typhoid

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

The Schick test was developed by Béla Schick to determine whether a person is susceptible to diphtheria.

Multiple choice

The oldest known disease in the world is

  1. leprosy

  2. breast cancer

  3. lung cancer

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

Leprosy (Hansen's disease) is widely cited in medical history as one of the oldest known diseases, with evidence of its existence dating back to ancient civilizations.

Multiple choice

Which of the following is correct pair of disease and its causing agent?

  1. Food poisoning-Brevibacillus brevis

  2. Gonorrhoea-Entamoeba

  3. Syphilis-Treponema pallidum

  4. Urethritis-Bacillus anthracis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Syphilis is a sexually transmitted disease caused by Treponema pallidum. The incubation period of this pathogen varies form 10 to 90 days (average one month). 

Multiple choice

Tetanus is caused by

  1. Fungus

  2. Virus

  3. Bacteria

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

Tetanus is a serious bacterial infection caused by Clostridium tetani. The bacteria produce a toxin that affects the nervous system.

Multiple choice

Water borne disease is

  1. Diabetes

  2. Cancer

  3. Appendicitis

  4. Cholera
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cholera occur due to Vibrio cholerae.

Multiple choice

Smoking is linked to

  1. Cancer

  2. Hepatitis

  3. Typhoid

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

Smoking causes lung cancer.

Multiple choice

Fevers

  1. Decrease interferon production

  2. Decrease the concentration of iron in blood

  3. Decrease the activity of phagocytes

  4. Increase the reproduction rate of invading bacteria
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biological fact.