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

Which of the following is a common bacterial cause of meningitis in adults?

  1. Streptococcus pneumoniae

  2. Neisseria meningitidis

  3. Haemophilus influenzae

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

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

Multiple choice

What is the most common viral cause of meningitis?

  1. Enterovirus

  2. Herpes simplex virus

  3. Mumps virus

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

Enterovirus is 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. Pseudomonas aeruginosa
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 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 NOT a risk factor for traveler's diarrhea?

  1. Traveling to a developing country

  2. Eating street food

  3. Drinking tap water

  4. Having a strong immune system
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Having a strong immune system does not protect against traveler's diarrhea.

Multiple choice

What is the most common cause of foodborne illness?

  1. Bacteria

  2. Viruses

  3. Parasites

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

Foodborne illness can be caused by a variety of microorganisms, including bacteria, viruses, and parasites.

Multiple choice

What are some examples of diseases that are caused by antigens?

  1. Influenza

  2. Measles

  3. Chickenpox

  4. HIV/AIDS

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Antigens can cause a variety of diseases, including influenza, measles, chickenpox, HIV/AIDS, and many others.

Multiple choice

Which of the following is NOT a type of respiratory allergy?

  1. Hay fever

  2. Asthma

  3. Eczema

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

Eczema is a skin condition, not a respiratory allergy. Respiratory allergies include hay fever, asthma, and food allergies.

Multiple choice

Which of the following is an example of a microbe that can cause disease in humans?

  1. Escherichia coli

  2. Lactobacillus

  3. Streptococcus pneumoniae

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

Streptococcus pneumoniae is a bacterium that can cause pneumonia, meningitis, and other infections in humans.

Multiple choice

What is cirrhosis?

  1. A chronic liver disease that can lead to scarring and liver failure

  2. A type of cancer that affects the liver

  3. A bacterial infection of the liver

  4. A viral infection of the liver
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cirrhosis is a chronic liver disease that can lead to scarring and liver failure. It is often caused by long-term alcohol abuse, but can also be caused by other factors such as hepatitis B and C, autoimmune diseases, and certain medications.

Multiple choice

Which of the following is a common childhood disease caused by a virus that causes fever, cough, and runny nose?

  1. Measles

  2. Mumps

  3. Rubella

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

The common cold is a viral infection of the nose and throat caused by a variety of viruses, including rhinoviruses, coronaviruses, and adenoviruses.

Multiple choice

Which of the following is a viral infection that causes a rash, fever, and swollen lymph nodes?

  1. Measles

  2. Mumps

  3. Rubella

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

Measles is a highly contagious viral infection that causes a rash, fever, and swollen lymph nodes.

Multiple choice

What is the most common type of meningitis in children?

  1. Bacterial meningitis

  2. Viral meningitis

  3. Fungal meningitis

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

Bacterial meningitis is the most common type of meningitis in children, accounting for approximately 50% of cases.

Multiple choice

Which of the following is a bacterial infection that causes a sore throat, fever, and headache?

  1. Strep throat

  2. Tonsillitis

  3. Pharyngitis

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

Strep throat is a bacterial infection of the throat caused by the bacterium Streptococcus pyogenes.