Biology ยท 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

What is the most common viral cause of meningitis?

  1. Herpes simplex virus

  2. Enterovirus

  3. Mumps virus

  4. Varicella-zoster virus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Enteroviruses are the most common viral cause of meningitis.

Multiple choice

What is the most common cause of encephalitis?

  1. Herpes simplex virus

  2. Japanese encephalitis virus

  3. West Nile virus

  4. Tick-borne encephalitis virus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Herpes simplex virus is the most common cause of encephalitis.

Multiple choice

What is the most common cause of subdural empyema?

  1. Streptococcus pneumoniae

  2. Staphylococcus aureus

  3. Bacteroides fragilis

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Streptococcus pneumoniae is the most common cause of subdural empyema.

Multiple choice

What is the most common cause of transverse myelitis?

  1. Multiple sclerosis

  2. Neuromyelitis optica

  3. Viral infection

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Viral infection is the most common cause of transverse myelitis.

Multiple choice

What is the most common cause of Guillain-Barre syndrome?

  1. Campylobacter jejuni infection

  2. Epstein-Barr virus infection

  3. Zika virus infection

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Campylobacter jejuni infection is the most common cause of Guillain-Barre syndrome.

Multiple choice

Which of the following is NOT a common type of forest disease?

  1. Fungal diseases

  2. Bacterial diseases

  3. Viral diseases

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

Viral diseases are not common in forests, as they are typically spread by animals or insects.

Multiple choice

Which sexually transmitted infection (STI) is caused by the bacterium Chlamydia trachomatis?

  1. Chlamydia

  2. Gonorrhea

  3. Syphilis

  4. Herpes simplex virus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlamydia is a common STI caused by the bacterium Chlamydia trachomatis. It can infect both men and women and can lead to serious health complications if left untreated.

Multiple choice

What was the main chemical responsible for the Minamata disease in Japan?

  1. Methylmercury

  2. Lead

  3. Cadmium

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

The Minamata disease was caused by the release of methylmercury from a chemical plant into the Minamata Bay, leading to neurological disorders and other health issues among the local population.

Multiple choice

What was the main chemical responsible for the Walkerton E. coli outbreak in Canada in 2000?

  1. E. coli O157:H7

  2. Salmonella

  3. Shigella

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

The Walkerton E. coli outbreak was caused by the contamination of the town's drinking water with E. coli O157:H7, resulting in several illnesses and deaths.

Multiple choice

Which sexually transmitted infection (STI) is caused by the bacterium Chlamydia trachomatis?

  1. Gonorrhea

  2. Syphilis

  3. Chlamydia

  4. Herpes simplex virus (HSV)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chlamydia is an STI caused by the bacterium Chlamydia trachomatis.

Multiple choice

Which STI is caused by the human papillomavirus (HPV)?

  1. Genital herpes

  2. Gonorrhea

  3. Syphilis

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

Genital warts are caused by the human papillomavirus (HPV).

Multiple choice

Which STI is caused by the bacterium Treponema pallidum?

  1. Gonorrhea

  2. Syphilis

  3. Chlamydia

  4. Herpes simplex virus (HSV)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Syphilis is caused by the bacterium Treponema pallidum.

Multiple choice

Which of the following is an example of an infectious agent:

  1. Bacteria

  2. Virus

  3. Fungus

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

Bacteria, viruses, fungi, and protozoa are all examples of infectious agents.

Multiple choice

What is the term for a disease caused by an infectious agent:

  1. Infectious disease

  2. Non-infectious disease

  3. Genetic disease

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

A disease caused by an infectious agent is called an infectious disease.

Multiple choice

Which of the following is an example of an infectious disease:

  1. Common cold

  2. Influenza

  3. Measles

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Common cold, influenza, and measles are all examples of infectious diseases.