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 source of Norovirus contamination?

  1. Contaminated food

  2. Contaminated water

  3. Person-to-person contact

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

Contaminated food, water, and person-to-person contact are all common sources of Norovirus contamination.

Multiple choice

Which of the following is a common source of Hepatitis A contamination?

  1. Contaminated food

  2. Contaminated water

  3. Person-to-person contact

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

Contaminated food, water, and person-to-person contact are all common sources of Hepatitis A contamination.

Multiple choice

Which of the following is a common source of Rotavirus contamination?

  1. Contaminated food

  2. Contaminated water

  3. Person-to-person contact

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

Contaminated food, water, and person-to-person contact are all common sources of Rotavirus contamination.

Multiple choice

Which of the following is a common source of Giardia contamination?

  1. Contaminated food

  2. Contaminated water

  3. Person-to-person contact

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

Contaminated food, water, and person-to-person contact are all common sources of Giardia contamination.

Multiple choice

Which of the following is NOT a common 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. Foodborne illnesses are caused by bacteria, viruses, or parasites that are transmitted through contaminated food.

Multiple choice

Which type of biomedical model is used to study the spread of infectious diseases?

  1. Compartmental model

  2. Agent-based model

  3. Cellular automata model

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

Compartmental models, agent-based models, and cellular automata models are all types of biomedical models used to study the spread of infectious diseases.

Multiple choice

Which of the following is a common food safety hazard?

  1. Bacteria

  2. Viruses

  3. Parasites

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

Bacteria, viruses, and parasites are all common food safety hazards that can cause foodborne illness if consumed.

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 type of foodborne outbreak?

  1. Salmonella outbreak

  2. E. coli outbreak

  3. Listeria outbreak

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

Salmonella outbreaks, E. coli outbreaks, and Listeria outbreaks are all common types of foodborne outbreaks that can cause widespread illness.

Multiple choice

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

  1. Bacteria

  2. Viruses

  3. Allergies

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

Bacteria are the most common cause of ear infections in children, particularly Streptococcus pneumoniae and Haemophilus influenzae.

Multiple choice

What is the most serious complication of an ear infection?

  1. Meningitis

  2. Encephalitis

  3. Mastoiditis

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

Meningitis, encephalitis, and mastoiditis are all serious complications of an ear infection.

Multiple choice

What is the most common complication of acute otitis media?

  1. Mastoiditis

  2. Meningitis

  3. Encephalitis

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

Mastoiditis is the most common complication of acute otitis media.

Multiple choice

Which disease is characterized by respiratory symptoms, such as coughing, sneezing, and nasal discharge, in poultry?

  1. Newcastle disease

  2. Fowl pox

  3. Marek's disease

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

Infectious bronchitis is a highly contagious viral disease that affects the respiratory system of poultry, causing symptoms such as coughing, sneezing, and nasal discharge.

Multiple choice

What is the primary route of transmission of Salmonella in poultry?

  1. Contact with contaminated water

  2. Contact with contaminated feed

  3. Contact with infected birds

  4. Contact with contaminated equipment
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Salmonella is primarily transmitted to poultry through contact with contaminated feed or water. It can also be spread through contact with infected birds or contaminated equipment.

Multiple choice

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

  1. Streptococcus pneumoniae

  2. Neisseria meningitidis

  3. Haemophilus influenzae

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

Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae are all common bacterial causes of meningitis.