Biology ยท Science General

Disease Causative Agents

2,258 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 NOT a type of microorganism that can cause disease?

  1. Bacteria

  2. Archaea

  3. Fungi

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

Archaea are not known to cause disease.

Multiple choice

What is the most common cause of bone and joint infections?

  1. Bacteria

  2. Viruses

  3. Fungi

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

Bacteria are the most common cause of bone and joint infections. Common types of bacteria that can cause these infections include Staphylococcus aureus, Streptococcus pyogenes, and Pseudomonas aeruginosa.

Multiple choice

What is the most common type of bone and joint infection in children?

  1. Osteomyelitis

  2. Septic arthritis

  3. Discitis

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

Osteomyelitis is the most common type of bone and joint infection in children. It is an infection of the bone marrow and can cause pain, swelling, and fever.

Multiple choice

Which of the following is a complication of bone and joint infections?

  1. Sepsis

  2. Endocarditis

  3. Meningitis

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

Bone and joint infections can lead to a variety of complications, including sepsis, endocarditis, and meningitis. Sepsis is a life-threatening condition that occurs when bacteria enter the bloodstream and spread throughout the body. Endocarditis is an infection of the lining of the heart, while meningitis is an infection of the lining of the brain and spinal cord.

Multiple choice

What is the most common type of bone and joint infection in adults?

  1. Osteomyelitis

  2. Septic arthritis

  3. Discitis

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

Septic arthritis is the most common type of bone and joint infection in adults. It is an infection of the joint space, which can cause pain, swelling, and difficulty moving the affected joint.

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

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.