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 cause of a stye?

  1. Bacteria

  2. Virus

  3. Fungus

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

A stye is a small, painful bump on the eyelid caused by a bacterial infection of an oil gland.

Multiple choice

What is the most common cause of keratitis?

  1. Bacteria

  2. Virus

  3. Fungus

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

Keratitis is an inflammation of the cornea, the clear outer layer of the eye. The most common cause of keratitis is a viral infection, such as herpes simplex virus or adenovirus.

Multiple choice

What is the most common cause of uveitis?

  1. Bacteria

  2. Virus

  3. Autoimmune disease

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

Uveitis is an inflammation of the uvea, the middle layer of the eye. The most common cause of uveitis is an autoimmune disease, such as rheumatoid arthritis or lupus.

Multiple choice

What is the most common cause of endophthalmitis?

  1. Bacteria

  2. Virus

  3. Fungus

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

Endophthalmitis is an inflammation of the inside of the eye. The most common cause of endophthalmitis is a bacterial infection.

Multiple choice

What is the most common cause of orbital cellulitis?

  1. Bacteria

  2. Virus

  3. Fungus

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

Orbital cellulitis is an inflammation of the tissues surrounding the eye. The most common cause of orbital cellulitis is a bacterial infection.

Multiple choice

What is the most common cause of uveitis in children?

  1. Bacteria

  2. Virus

  3. Autoimmune disease

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

Uveitis in children is most commonly caused by an autoimmune disease, such as juvenile idiopathic arthritis or Crohn's disease.

Multiple choice

Which of the following is a common bacterial skin infection caused by Staphylococcus aureus?

  1. Impetigo

  2. Ringworm

  3. Scabies

  4. Athlete's foot
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Impetigo is a contagious skin infection caused by bacteria, typically Staphylococcus aureus or Streptococcus pyogenes. It is characterized by the formation of blisters and sores on the skin.

Multiple choice

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

  1. Impetigo

  2. Ringworm

  3. Scabies

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

Impetigo is a bacterial skin infection that causes the formation of small, fluid-filled blisters on the skin. These blisters can rupture and form a crusty, yellow-brownish layer.

Multiple choice

What is the primary causative agent of cellulitis?

  1. Bacteria

  2. Virus

  3. Fungus

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

Cellulitis is a bacterial infection of the deeper layers of the skin and underlying tissues. It is commonly caused by bacteria such as Streptococcus pyogenes and Staphylococcus aureus.

Multiple choice

Which skin infection is caused by the herpes simplex virus?

  1. Impetigo

  2. Ringworm

  3. Scabies

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

Herpes simplex is a viral infection caused by the herpes simplex virus (HSV). It can cause blisters and sores on the skin, mouth, and genitals.

Multiple choice

Which skin infection is characterized by the formation of a ring-shaped rash with raised, scaly borders?

  1. Impetigo

  2. Ringworm

  3. Scabies

  4. Athlete's foot
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ringworm, also known as tinea, is a fungal infection that causes a ring-shaped rash with raised, scaly borders. It can affect the skin, scalp, and nails.

Multiple choice

Which skin infection is characterized by the formation of small, itchy, raised bumps on the skin?

  1. Impetigo

  2. Ringworm

  3. Scabies

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

Scabies is characterized by the formation of small, itchy, raised bumps on the skin, particularly in areas such as the hands, wrists, elbows, and buttocks.

Multiple choice

Which skin infection is caused by the human papillomavirus (HPV)?

  1. Impetigo

  2. Ringworm

  3. Scabies

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

Warts are caused by the human papillomavirus (HPV). They are small, raised growths that can appear on the skin or mucous membranes.

Multiple choice

Which disease has been eradicated globally?

  1. Smallpox

  2. Polio

  3. Measles

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

Smallpox is the only disease that has been eradicated globally through vaccination.

Multiple choice

Which of the following is a type of urethral stricture that is caused by inflammation?

  1. Inflammatory urethral stricture

  2. Ischemic urethral stricture

  3. Traumatic urethral stricture

  4. Congenital urethral stricture
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Inflammatory urethral stricture is a type of urethral stricture that is caused by inflammation.