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

What is the primary cause of measles, a highly contagious viral infection characterized by a rash, fever, and respiratory symptoms?

  1. Measles virus

  2. Mumps virus

  3. Rubella virus

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

Measles is caused by the measles virus, which is highly contagious and can be spread through respiratory droplets. It is characterized by a rash, fever, and respiratory symptoms such as cough and runny nose.

Multiple choice

What is the primary cause of mumps, a viral infection characterized by swelling of the salivary glands?

  1. Mumps virus

  2. Measles virus

  3. Rubella virus

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

Mumps is caused by the mumps virus, which is highly contagious and can be spread through respiratory droplets. It is characterized by swelling of the salivary glands, fever, and muscle aches.

Multiple choice

What is the primary cause of rubella, a viral infection characterized by a rash, fever, and joint pain?

  1. Rubella virus

  2. Measles virus

  3. Mumps virus

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

Rubella, also known as German measles, is caused by the rubella virus, which is highly contagious and can be spread through respiratory droplets. It is characterized by a rash, fever, and joint pain.

Multiple choice

Which skin condition is characterized by the formation of small, fluid-filled blisters on the skin, often accompanied by itching and burning?

  1. Chickenpox

  2. Measles

  3. Mumps

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

Chickenpox is a highly contagious viral infection characterized by the formation of small, fluid-filled blisters on the skin, often accompanied by itching and burning. It is caused by the varicella-zoster virus.

Multiple choice

What is the most common nose and sinus infection?

  1. Common cold

  2. Sinusitis

  3. Nasal polyps

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

The common cold is a viral infection of the nose and throat that causes symptoms such as a runny nose, sore throat, and cough.

Multiple choice

What is the most common type of sinus infection?

  1. Acute sinusitis

  2. Chronic sinusitis

  3. Subacute sinusitis

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

Acute sinusitis is the most common type of sinus infection. It is a short-term infection that lasts for less than 4 weeks.

Multiple choice

What causes a sinus infection?

  1. Bacteria

  2. Viruses

  3. Fungi

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

Sinus infections can be caused by bacteria, viruses, or fungi.

Multiple choice

What are the complications of a sinus infection?

  1. Meningitis

  2. Encephalitis

  3. Orbital cellulitis

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

The complications of a sinus infection can include meningitis, encephalitis, and orbital cellulitis.

Multiple choice

What is the most common type of hepatitis?

  1. Hepatitis A

  2. Hepatitis B

  3. Hepatitis C

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

Hepatitis A is the most common type of hepatitis, with an estimated 1.4 million cases worldwide each year.

Multiple choice

What is the most common bacterial disease in poultry?

  1. Avian influenza

  2. Newcastle disease

  3. Marek's disease

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

Colibacillosis is a bacterial infection caused by Escherichia coli, which can affect poultry of all ages. It can cause a variety of symptoms, including diarrhea, respiratory problems, and septicemia.

Multiple choice

Which viral disease is highly contagious and can cause severe respiratory symptoms in poultry?

  1. Avian influenza

  2. Newcastle disease

  3. Marek's disease

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

Newcastle disease is a highly contagious viral disease that can affect poultry of all ages. It is caused by a paramyxovirus and can cause a variety of symptoms, including respiratory problems, diarrhea, and nervous signs.

Multiple choice

What is the most common viral disease in poultry?

  1. Avian influenza

  2. Newcastle disease

  3. Marek's disease

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

Marek's disease is a highly contagious viral disease that can affect poultry of all ages. It is caused by a herpesvirus and can cause a variety of symptoms, including paralysis, blindness, and immunosuppression.

Multiple choice

Which disease is caused by a protozoan parasite and can cause severe diarrhea in poultry?

  1. Avian influenza

  2. Newcastle disease

  3. Marek's disease

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

Coccidiosis is a protozoan disease that can affect poultry of all ages. It is caused by a coccidian parasite and can cause severe diarrhea, weight loss, and dehydration.

Multiple choice

Which disease is caused by a virus and can cause severe respiratory symptoms in poultry?

  1. Avian influenza

  2. Newcastle disease

  3. Marek's disease

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

Avian influenza is a viral disease that can affect poultry of all ages. It is caused by an influenza virus and can cause a variety of symptoms, including respiratory problems, diarrhea, and nervous signs.

Multiple choice

What is the most common cause of lameness in poultry?

  1. Bumblefoot

  2. Marek's disease

  3. Coccidiosis

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

Bumblefoot is a bacterial infection of the foot pad in poultry. It is caused by a variety of bacteria, including Staphylococcus aureus and Escherichia coli, and can cause lameness, swelling, and pain.