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 type of foodborne illness caused by Bacillus cereus?

  1. Bacillus cereus food poisoning

  2. Salmonella

  3. E. coli infection

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

Bacillus cereus food poisoning is the most common type of foodborne illness caused by Bacillus cereus.

Multiple choice

What is the most common type of foodborne illness caused by Vibrio cholerae?

  1. Cholera

  2. Salmonella

  3. E. coli infection

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

Cholera is the most common type of foodborne illness caused by Vibrio cholerae.

Multiple choice

Which of the following foods is most commonly associated with Vibrio cholerae outbreaks?

  1. Seafood

  2. Meat

  3. Dairy products

  4. Fruits and vegetables
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Seafood is the most commonly associated food with Vibrio cholerae outbreaks.

Multiple choice

Which of the following is an example of an emerging infectious disease?

  1. Influenza

  2. Malaria

  3. HIV/AIDS

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

Ebola is an emerging infectious disease because it is a new disease that has recently appeared in humans.

Multiple choice

Which of the following is an example of a re-emerging infectious disease?

  1. Tuberculosis

  2. Cholera

  3. Measles

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

Tuberculosis is a re-emerging infectious disease because it is a disease that was once common but has declined in incidence and is now increasing again.

Multiple choice

What is the primary mode of transmission for respiratory infections?

  1. Direct contact with an infected person

  2. Contact with contaminated surfaces

  3. Inhalation of airborne droplets

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

Respiratory infections can be transmitted through direct contact with an infected person, contact with contaminated surfaces, or inhalation of airborne droplets produced by coughing, sneezing, or talking.

Multiple choice

What is the most common respiratory disease worldwide?

  1. Asthma

  2. Chronic obstructive pulmonary disease (COPD)

  3. Pneumonia

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

Pneumonia is the most common respiratory disease worldwide, causing significant morbidity and mortality. It is an infection of the lungs caused by bacteria, viruses, or fungi.

Multiple choice

What is the most common respiratory infection in children?

  1. Common cold

  2. Influenza

  3. Pneumonia

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

The common cold is the most common respiratory infection in children. It is caused by a virus and can cause symptoms such as runny nose, sore throat, cough, and fever.

Multiple choice

What is the most common respiratory infection in adults?

  1. Influenza

  2. Pneumonia

  3. Bronchitis

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

Influenza is the most common respiratory infection in adults. It is caused by a virus and can cause symptoms such as fever, cough, sore throat, muscle aches, and fatigue.

Multiple choice

What is the most common cause of pneumonia?

  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 pneumonia. Viruses, fungi, and parasites can also cause pneumonia, but they are less common.

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.