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 chickenpox?

  1. Varicella-zoster virus

  2. Herpes simplex virus

  3. Epstein-Barr virus

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

Chickenpox is caused by the varicella-zoster virus, which is a member of the herpesvirus family.

Multiple choice

What is the most common cause of rubella?

  1. Rubella virus

  2. Measles virus

  3. Mumps virus

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

Rubella is caused by the rubella virus, which is a member of the togavirus family.

Multiple choice

What is the most common cause of hand, foot, and mouth disease?

  1. Coxsackievirus A16

  2. Coxsackievirus A6

  3. Enterovirus 71

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

Hand, foot, and mouth disease is caused by a variety of viruses, including coxsackievirus A16, coxsackievirus A6, and enterovirus 71.

Multiple choice

What is the most common cause of scarlet fever?

  1. Streptococcus pyogenes

  2. Staphylococcus aureus

  3. Escherichia coli

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

Scarlet fever is caused by Streptococcus pyogenes, which is a type of bacteria.

Multiple choice

What is the most common cause of diphtheria?

  1. Corynebacterium diphtheriae

  2. Streptococcus pyogenes

  3. Staphylococcus aureus

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

Diphtheria is caused by Corynebacterium diphtheriae, which is a type of bacteria.

Multiple choice

What is the most common cause of poliomyelitis?

  1. Poliovirus

  2. Coxsackievirus

  3. Echovirus

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

Poliomyelitis is caused by the poliovirus, which is a member of the enterovirus family.

Multiple choice

What is the most common cause of hepatitis B?

  1. Hepatitis B virus

  2. Hepatitis A virus

  3. Hepatitis C virus

  4. Hepatitis D virus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hepatitis B is caused by the hepatitis B virus, which is a member of the hepadnavirus family.

Multiple choice

What is the scientific name for the common cold?

  1. Rhinovirus

  2. Coronavirus

  3. Influenza virus

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

The common cold is caused by a virus called rhinovirus.

Multiple choice

Which microorganism is responsible for the common cold?

  1. Rhinovirus

  2. Influenza virus

  3. Coronavirus

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

Rhinoviruses are the most common cause of the common cold, accounting for about 30-50% of cases.

Multiple choice

Which of the following is NOT a type of non-communicable disease?

  1. Heart disease

  2. Stroke

  3. Cancer

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

Malaria is a communicable disease, meaning that it can be transmitted from person to person through the bite of an infected mosquito.

Multiple choice

Which type of immunological disorder is characterized by a weakened immune system, making the individual more susceptible to infections?

  1. Immunodeficiency disorder

  2. Allergic disorder

  3. Autoimmune disorder

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

Immunodeficiency disorders are characterized by a weakened immune system, making the individual more susceptible to infections and diseases.

Multiple choice

Which of the following is NOT a common cause of fever in children?

  1. Influenza

  2. Streptococcal pharyngitis

  3. Pneumonia

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

Chickenpox is typically not associated with fever.

Multiple choice

What is the most common cause of bacterial meningitis in children?

  1. Streptococcus pneumoniae

  2. Neisseria meningitidis

  3. Haemophilus influenzae type b

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

Streptococcus pneumoniae is the most common cause of bacterial meningitis in children.

Multiple choice

What is the most common cause of viral gastroenteritis in children?

  1. Rotavirus

  2. Norovirus

  3. Adenovirus

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

Rotavirus is the most common cause of viral gastroenteritis in children.

Multiple choice

Which of the following is a common complication of pneumonia in children?

  1. Pleural effusion

  2. Empyema

  3. Pericarditis

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

Pleural effusion is a common complication of pneumonia in children.