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 term for a disease that is not 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
B Correct answer
Explanation

A disease that is not caused by an infectious agent is called a non-infectious disease.

Multiple choice

Which of the following is an example of a non-infectious disease:

  1. Heart disease

  2. Cancer

  3. Diabetes

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

Heart disease, cancer, and diabetes are all examples of non-infectious diseases.

Multiple choice

What is the term for a disease that is caused by a defect in the immune system:

  1. Infectious disease

  2. Non-infectious disease

  3. Genetic disease

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

A disease that is caused by a defect in the immune system is called an autoimmune disease.

Multiple choice

Which food contaminant is a common cause of foodborne illness?

  1. Salmonella

  2. E. coli

  3. Listeria monocytogenes

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

Salmonella, E. coli, and Listeria monocytogenes are all common foodborne pathogens that can cause foodborne illness, leading to symptoms such as nausea, vomiting, diarrhea, and abdominal pain.

Multiple choice

Which of the following is not a common poultry disease?

  1. Newcastle disease

  2. Avian influenza

  3. Marek's disease

  4. Mad cow disease
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mad cow disease is not a common poultry disease.

Multiple choice

What is the most common cause of traveler's diarrhea?

  1. Bacteria

  2. Viruses

  3. Parasites

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

Traveler's diarrhea can be caused by a variety of microorganisms, including bacteria, viruses, and parasites.

Multiple choice

Which of the following is a leading cause of death among children under the age of 5 worldwide?

  1. Pneumonia

  2. Diarrhea

  3. Malaria

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

Pneumonia is the leading cause of death among children under the age of 5 worldwide, accounting for an estimated 1.4 million deaths each year.

Multiple choice

What is the term for the inflammation of the lungs caused by a bacterial or viral infection?

  1. Pneumonia

  2. Bronchitis

  3. Asthma

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

Pneumonia is the inflammation of the lungs caused by a bacterial or viral infection, and is a leading cause of death among children under the age of 5 worldwide.

Multiple choice

Which disease is caused by a virus and is characterized by a high fever, headache, and a rash, and can lead to serious complications such as encephalitis and meningitis?

  1. Measles

  2. Mumps

  3. Rubella

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

Measles is caused by a virus and is characterized by a high fever, headache, and a rash, and can lead to serious complications such as encephalitis and meningitis.

Multiple choice

Which disease is caused by a bacterium and is characterized by a persistent cough, fever, and weight loss, and can lead to lung damage and death?

  1. Tuberculosis

  2. Pneumonia

  3. Bronchitis

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

Tuberculosis is caused by a bacterium and is characterized by a persistent cough, fever, and weight loss, and can lead to lung damage and death.

Multiple choice

Which disease is caused by a virus and is characterized by a fever, headache, muscle aches, and a rash, and can lead to serious complications such as encephalitis and meningitis?

  1. Dengue fever

  2. Chikungunya

  3. Yellow fever

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

Dengue fever is caused by a virus and is characterized by a fever, headache, muscle aches, and a rash, and can lead to serious complications such as encephalitis and meningitis.

Multiple choice

What is the most common sexually transmitted infection (STI) that affects the skin?

  1. Herpes simplex virus (HSV)

  2. Human papillomavirus (HPV)

  3. Syphilis

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

Human papillomavirus (HPV) is the most common sexually transmitted infection (STI) that affects the skin. It can cause warts, genital warts, and certain types of cancer.

Multiple choice

Which skin condition is characterized by the formation of small, itchy, fluid-filled blisters on the skin?

  1. Chickenpox

  2. Shingles

  3. Herpes simplex virus (HSV)

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

Chickenpox is a highly contagious viral infection that causes small, itchy, fluid-filled blisters on the skin.

Multiple choice

What is the primary cause of seborrheic dermatitis?

  1. Fungal infection

  2. Bacterial infection

  3. Hormonal imbalances

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

Seborrheic dermatitis is a common skin condition caused by a fungal infection that affects the scalp, face, and other oily areas of the body.

Multiple choice

What is the most common cause of diarrhea in toddlers?

  1. Viral infection

  2. Bacterial infection

  3. Food allergy

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

Viral infections are the most common cause of diarrhea in toddlers. Rotavirus is a common culprit.