Biology ยท Science General

Disease Causative Agents

2,258 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 type of infectious disease?

  1. Bacterial

  2. Viral

  3. Fungal

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

Genetic diseases are not caused by infectious agents, but rather by genetic mutations.

Multiple choice

What is the most common sexually transmitted infection (STI)?

  1. Chlamydia

  2. Gonorrhea

  3. Herpes simplex virus (HSV)

  4. Human papillomavirus (HPV)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlamydia is the most common STI in the United States, with an estimated 1.3 million new cases each year.

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 illness.

Multiple choice

Which chronic disease is characterized by inflammation of the airways?

  1. Asthma

  2. Chronic obstructive pulmonary disease (COPD)

  3. Cystic fibrosis

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

Asthma is a chronic disease characterized by inflammation of the airways, causing difficulty breathing.

Multiple choice

Which chronic disease affects the immune system and causes inflammation in various parts of the body?

  1. Lupus

  2. Rheumatoid arthritis

  3. Multiple sclerosis

  4. Sjogren's syndrome
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lupus is a chronic disease that affects the immune system and causes inflammation in various parts of the body.

Multiple choice

Which of the following is a common cause of uveitis in horses?

  1. Equine recurrent uveitis

  2. Bacterial infections

  3. Fungal infections

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

Equine recurrent uveitis is a common cause of uveitis in horses. It is a chronic, progressive disease that can lead to blindness if left untreated.

Multiple choice

Which of the following is a common waterborne disease?

  1. Cholera

  2. Typhoid

  3. Dysentery

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

Cholera, typhoid, and dysentery are all common waterborne diseases that can be transmitted through contaminated water.

Multiple choice

What is the most common sexually transmitted infection (STI) that affects the skin?

  1. Herpes simplex virus (HSV)

  2. Human papillomavirus (HPV)

  3. Syphilis

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

Herpes simplex virus (HSV) is the most common STI that affects the skin, causing blisters and sores on the genitals, mouth, or other areas of the body.

Multiple choice

What is the primary cause of warts?

  1. Bacteria

  2. Virus

  3. Genetics

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

Warts are caused by a virus called the human papillomavirus (HPV).

Multiple choice

Which of the following is a viral disease that affects cattle and causes respiratory and digestive problems?

  1. Foot and Mouth Disease

  2. Bovine Viral Diarrhea

  3. Mastitis

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

Bovine Viral Diarrhea is a highly contagious viral disease that affects cattle of all ages, causing respiratory and digestive problems, and can lead to significant economic losses.

Multiple choice

What is the primary cause of Newcastle Disease in poultry?

  1. Bacteria

  2. Virus

  3. Fungus

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

Newcastle Disease is caused by a virus known as Avian Paramyxovirus-1 (APMV-1), which is highly contagious and can cause severe respiratory and neurological symptoms in poultry.

Multiple choice

Which of these is a bacterial disease that affects pigs and causes pneumonia and meningitis?

  1. African Swine Fever

  2. Porcine Reproductive and Respiratory Syndrome

  3. Swine Dysentery

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

Streptococcus suis is a bacterial infection that can cause pneumonia, meningitis, and other systemic diseases in pigs, leading to significant economic losses in the swine industry.

Multiple choice

What is the primary mode of transmission for Bovine Tuberculosis?

  1. Airborne

  2. Contact

  3. Ingestion

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

Bovine Tuberculosis is primarily transmitted through the inhalation of aerosolized droplets containing Mycobacterium bovis, making it an airborne disease.

Multiple choice

Which of these is a fungal disease that affects horses' hooves and causes laminitis?

  1. Equine Influenza

  2. Equine Herpesvirus

  3. Equine Colic

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

Equine Laminitis is a fungal disease that affects horses' hooves, causing inflammation and separation of the hoof wall from the underlying structures, leading to lameness.

Multiple choice

What is the causative agent of Canine Distemper?

  1. Canine Parvovirus

  2. Canine Adenovirus

  3. Canine Distemper Virus

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

Canine Distemper is caused by the Canine Distemper Virus, a highly contagious virus that affects dogs and can cause a wide range of symptoms, including respiratory, gastrointestinal, and neurological problems.