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 causes tonsillitis?

  1. Bacteria

  2. Viruses

  3. Both bacteria and viruses

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tonsillitis can be caused by bacteria, viruses, or both.

Multiple choice

How is tonsillitis diagnosed?

  1. Physical examination

  2. Throat culture

  3. Blood test

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

Tonsillitis is diagnosed based on a physical examination, throat culture, and/or blood test.

Multiple choice

What is rheumatic fever?

  1. A serious complication of tonsillitis

  2. A type of arthritis caused by strep throat

  3. A heart condition caused by a bacterial infection

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

Rheumatic fever is a serious complication of tonsillitis that can cause inflammation of the heart, joints, and brain.

Multiple choice

Which of the following is NOT a common type of foodborne illness?

  1. Salmonella

  2. E. coli

  3. Influenza

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

Influenza is a respiratory illness, not a foodborne illness.

Multiple choice

Which of the following is NOT a common type of beverage contamination?

  1. Bacteria

  2. Viruses

  3. Pesticides

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

Pesticides are not a common type of beverage contamination, as they are typically used on crops and not in the production of beverages.

Multiple choice

What are some common beverage safety hazards?

  1. Bacteria

  2. Viruses

  3. Parasites

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

Common beverage safety hazards include bacteria, viruses, and parasites.

Multiple choice

Which of the following is a common foodborne illness?

  1. Salmonella

  2. E. coli

  3. Listeria

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

Salmonella, E. coli, and Listeria are all common foodborne illnesses that can cause a variety of symptoms, including nausea, vomiting, diarrhea, and abdominal pain.

Multiple choice

Which of the following is a common cause of urinary tract infections (UTIs)?

  1. Bacteria

  2. Viruses

  3. Fungi

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

Bacteria, particularly Escherichia coli (E. coli), are the most common cause of urinary tract infections.

Multiple choice

Which of the following diseases has the highest mortality rate among children under the age of five globally?

  1. Pneumonia

  2. Diarrhea

  3. Malaria

  4. HIV/AIDS
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pneumonia is the leading cause of death among children under the age of five globally, accounting for approximately 15% of all deaths in this age group.

Multiple choice

What is the primary cause of myocarditis?

  1. Viral infection

  2. Bacterial infection

  3. Autoimmune disorder

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

Viral infections, particularly those caused by Coxsackievirus B, are the most common cause of myocarditis.

Multiple choice

What is the primary mechanism by which viruses cause myocarditis?

  1. Direct invasion of heart muscle cells

  2. Immune system overreaction

  3. Formation of blood clots

  4. Narrowing of heart arteries
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The immune system's response to viral infection can lead to inflammation and damage to heart muscle cells.

Multiple choice

True or False: Myocarditis is always caused by a bacterial infection.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Myocarditis can be caused by various factors, including viral infections, bacterial infections, autoimmune disorders, and certain medications.

Multiple choice

What is the most common cause of intussusception in neonates?

  1. Meconium ileus

  2. Hirschsprung's disease

  3. Viral infection

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

Viral infection is the most common cause of intussusception, a condition in which one part of the intestine slides into another part, in neonates.

Multiple choice

Which of the following is not a common foodborne illness?

  1. Salmonella

  2. E. coli

  3. Influenza

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

Influenza is not a foodborne illness.

Multiple choice

Which sexually transmitted infection (STI) can cause infertility in men?

  1. Chlamydia

  2. Gonorrhea

  3. Syphilis

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

Chlamydia is an STI that can cause infertility in men if left untreated.