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 NOT a common type of poliovirus?

  1. Type 1

  2. Type 2

  3. Type 3

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

Type 4 poliovirus is no longer in circulation and has been eradicated from the world.

Multiple choice

Which of the following is NOT a type of chronic inflammation?

  1. Rheumatoid arthritis

  2. Asthma

  3. Sepsis

  4. Crohn's disease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sepsis is an acute inflammatory response to infection, while rheumatoid arthritis, asthma, and Crohn's disease are examples of chronic inflammatory conditions.

Multiple choice

Which type of cancer is commonly associated with the human papillomavirus (HPV) infection?

  1. Cervical cancer

  2. Lung cancer

  3. Breast cancer

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

Cervical cancer is commonly associated with the human papillomavirus (HPV) infection. HPV is a sexually transmitted infection that can cause cervical cancer in women. Persistent infection with certain types of HPV can lead to the development of precancerous lesions and eventually cervical cancer.

Multiple choice

Which of the following is NOT a major waterborne disease that was common in the past?

  1. Cholera

  2. Typhoid

  3. Dysentery

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

Polio is a viral disease that is spread through contact with infected feces. It is not a waterborne disease.

Multiple choice

Which of the following is a viral infection that causes inflammation of the liver?

  1. Hepatitis A

  2. Hepatitis B

  3. Hepatitis C

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

Hepatitis A, B, and C are all viral infections that can cause inflammation of the liver.

Multiple choice

Which of the following is a common disease in dairy cows that can be caused by poor hygiene and overcrowding?

  1. Mastitis

  2. Bovine spongiform encephalopathy (BSE)

  3. Foot-and-mouth disease

  4. Johne's disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mastitis is a common disease in dairy cows caused by bacterial infection of the udder, often resulting from poor hygiene and overcrowding in intensive farming systems.

Multiple choice

Which skin condition is characterized by the formation of small, fluid-filled blisters on the skin?

  1. Herpes simplex virus (HSV)

  2. Varicella-zoster virus (VZV)

  3. Molluscum contagiosum

  4. Hand, foot, and mouth disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Herpes simplex virus (HSV) is a common skin condition that can cause small, fluid-filled blisters on the skin.

Multiple choice

What is the most common cause of Otitis Media?

  1. Bacteria

  2. Virus

  3. Fungus

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

Bacteria are the most common cause of Otitis Media, with Streptococcus pneumoniae and Haemophilus influenzae being the most common culprits.

Multiple choice

What is the most common type of encephalitis in children?

  1. Herpes simplex encephalitis

  2. Japanese encephalitis

  3. West Nile virus encephalitis

  4. Eastern equine encephalitis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Herpes simplex encephalitis is the most common type of encephalitis in children, accounting for about 50% of all cases. It is caused by the herpes simplex virus type 1 (HSV-1) and can lead to severe brain damage and disability.

Multiple choice

Which of the following is a common waterborne pathogen that can cause gastrointestinal illness?

  1. Escherichia coli

  2. Salmonella

  3. Shigella

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

Escherichia coli, Salmonella, and Shigella are all common waterborne pathogens that can cause gastrointestinal illness. They can be transmitted through contaminated water, food, or contact with infected individuals.

Multiple choice

Which of the following is a common sexually transmitted infection (STI) that can affect women?

  1. Chlamydia

  2. Influenza

  3. Malaria

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

Chlamydia is a common STI caused by the bacterium Chlamydia trachomatis. It can affect both men and women, causing symptoms such as discharge, pain during urination, and pelvic pain in women.

Multiple choice

Which foodborne pathogen is commonly associated with undercooked poultry and eggs?

  1. Salmonella

  2. E. coli

  3. Listeria monocytogenes

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

Salmonella is a common foodborne pathogen associated with undercooked poultry and eggs. It can cause symptoms such as diarrhea, vomiting, and fever.

Multiple choice

Which foodborne pathogen is commonly associated with raw milk and unpasteurized dairy products?

  1. E. coli

  2. Salmonella

  3. Listeria monocytogenes

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

Campylobacter jejuni is a common foodborne pathogen associated with raw milk and unpasteurized dairy products. It can cause symptoms such as diarrhea, abdominal pain, and fever.

Multiple choice

Which sexually transmitted infection (STI) is caused by the human papillomavirus (HPV)?

  1. Chlamydia

  2. Gonorrhea

  3. Herpes simplex virus (HSV)

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

Genital warts are caused by the human papillomavirus (HPV) and are a common STI.

Multiple choice

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

  1. Airborne droplets

  2. Direct contact

  3. Fomite transmission

  4. Vector-borne transmission
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The common cold is primarily transmitted through airborne droplets produced when an infected person coughs, sneezes, or talks.