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 water-related disease in rural areas?

  1. Typhoid

  2. Cholera

  3. Dysentery

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

Typhoid, cholera, and dysentery are all common water-related diseases in rural areas, as they can be transmitted through contaminated water or food.

Multiple choice

What is the most common cause of diarrhea in children?

  1. Rotavirus

  2. E. coli

  3. Salmonella

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

Rotavirus is the most common cause of diarrhea in children.

Multiple choice

What is the most common cause of diarrhea in adults?

  1. Norovirus

  2. Campylobacter

  3. Clostridium difficile

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

Norovirus is the most common cause of diarrhea in adults.

Multiple choice

What is the primary health hazard associated with exposure to bloodborne pathogens?

  1. Hepatitis B

  2. Hepatitis C

  3. HIV/AIDS

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

Exposure to bloodborne pathogens, such as hepatitis B, hepatitis C, and HIV/AIDS, can lead to serious infections and health complications.

Multiple choice

What is the most common type of healthcare-associated infection (HAI)?

  1. Urinary tract infection (UTI)

  2. Surgical site infection (SSI)

  3. Pneumonia

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

Urinary tract infections (UTIs) are the most prevalent type of HAI, accounting for a significant proportion of infections acquired in healthcare settings.

Multiple choice

Which respiratory disease is characterized by inflammation and narrowing of the airways?

  1. Asthma

  2. COPD

  3. Pneumonia

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

Asthma is a chronic respiratory disease that causes inflammation and narrowing of the airways, leading to difficulty breathing, wheezing, and coughing.

Multiple choice

Which respiratory disease is caused by a bacterial infection of the lungs?

  1. Pneumonia

  2. COPD

  3. Asthma

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

Pneumonia is a respiratory disease caused by a bacterial infection of the lungs. It can lead to inflammation, fluid accumulation in the lungs, and difficulty breathing.

Multiple choice

Which respiratory disease is caused by a fungal infection of the lungs?

  1. Pneumonia

  2. COPD

  3. Asthma

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

Tuberculosis is a respiratory disease caused by a bacterial infection of the lungs. It can spread through the air when an infected person coughs or sneezes. Tuberculosis can also affect other organs, such as the brain, kidneys, and bones.

Multiple choice

Which respiratory disease is caused by a virus?

  1. Pneumonia

  2. COPD

  3. Asthma

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

Influenza, commonly known as the flu, is a respiratory disease caused by a virus. It can cause fever, cough, sore throat, muscle aches, and fatigue.

Multiple choice

What is the most common cause of ear infections in children?

  1. Bacteria

  2. Virus

  3. Fungus

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

Ear infections, also known as otitis media, are usually caused by bacterial infections. Common bacterial culprits include Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis.

Multiple choice

Which childhood illness is characterized by a rash of small, red bumps that often itch?

  1. Chickenpox

  2. Measles

  3. Rubella

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

Chickenpox, caused by the varicella-zoster virus, is known for its itchy rash of small, red bumps that appear in crops over the body.

Multiple choice

What is the primary mode of transmission for the common cold?

  1. Direct contact with an infected person

  2. Airborne droplets

  3. Contaminated surfaces

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

The common cold, caused by various respiratory viruses, can spread through direct contact with an infected person, inhalation of airborne droplets, or touching contaminated surfaces and then touching the face.

Multiple choice

Which childhood illness is characterized by fever, headache, and a stiff neck?

  1. Meningitis

  2. Encephalitis

  3. Polio

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

Meningitis, an inflammation of the membranes surrounding the brain and spinal cord, typically presents with fever, headache, and stiff neck. It can be caused by bacterial or viral infections.

Multiple choice

Which childhood illness is caused by a bacterial infection of the tonsils?

  1. Strep throat

  2. Tonsillitis

  3. Laryngitis

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

Tonsillitis, an inflammation of the tonsils, is commonly caused by bacterial infections, particularly Streptococcus pyogenes (group A streptococcus).

Multiple choice

Which childhood illness is characterized by a barking cough and difficulty breathing?

  1. Croup

  2. Bronchitis

  3. Pneumonia

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

Croup, also known as laryngotracheobronchitis, is a respiratory infection that causes a barking cough, hoarseness, and difficulty breathing, primarily affecting young children.