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 mode of transmission for leptospirosis?

  1. Contact with contaminated water or soil

  2. Animal bites

  3. Airborne transmission

  4. Direct contact with an infected person
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Leptospirosis is primarily transmitted through contact with contaminated water or soil, which can occur during floods or heavy rains.

Multiple choice

What is the most common type of infection seen in military personnel?

  1. Pneumonia

  2. Malaria

  3. Typhoid fever

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

Diarrhea is the most common type of infection seen in military personnel, accounting for approximately 20% of all infections.

Multiple choice

Which of the following is a common disease affecting coral reefs?

  1. Coral Bleaching

  2. Coral Cancer

  3. Coral AIDS

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

Coral bleaching is a phenomenon where corals lose their symbiotic algae, leading to a loss of color and increased susceptibility to disease and death.

Multiple choice

What is the name of the disease that affects salmon and trout, causing severe lesions and mortality?

  1. Salmon Poxvirus

  2. Salmon AIDS

  3. Salmon Flu

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

Salmon Poxvirus is a highly contagious disease that affects salmon and trout, causing severe lesions and mortality.

Multiple choice

What is the name of the disease that affects oysters, causing a condition known as "Oyster Mortality Syndrome"?

  1. Oyster Herpesvirus

  2. Oyster AIDS

  3. Oyster Flu

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

Oyster Herpesvirus is a highly contagious disease that affects oysters, causing high mortality rates and significant economic losses.

Multiple choice

What is the name of the disease that affects lobsters, causing a condition known as "Lobster Shell Disease"?

  1. Lobster Herpesvirus

  2. Lobster AIDS

  3. Lobster Flu

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

Lobster Herpesvirus is a highly contagious disease that affects lobsters, causing lesions on the shell and internal organs, leading to death.

Multiple choice

What is the name of the disease that affects fish, causing a condition known as "Viral Hemorrhagic Septicemia"?

  1. Fish Herpesvirus

  2. Fish AIDS

  3. Fish Flu

  4. Fish Cancer
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Viral Hemorrhagic Septicemia is a highly contagious disease that affects fish, causing internal bleeding, organ damage, and high mortality rates.

Multiple choice

What is the name of the disease that affects shrimp, causing a condition known as "Shrimp Taura Syndrome"?

  1. Shrimp Herpesvirus

  2. Shrimp AIDS

  3. Shrimp Flu

  4. Shrimp Cancer
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Shrimp Taura Syndrome is a highly contagious disease that affects shrimp, causing high mortality rates and significant economic losses.

Multiple choice

What is the name of the disease that affects crabs, causing a condition known as "Crab Hemolymph Coagulation Disorder"?

  1. Crab Herpesvirus

  2. Crab AIDS

  3. Crab Flu

  4. Crab Cancer
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Crab Hemolymph Coagulation Disorder is a disease that affects crabs, causing abnormal blood clotting and high mortality rates.

Multiple choice

What are some of the specific foodborne pathogens that are likely to be more prevalent due to climate change?

  1. Salmonella

  2. E. coli

  3. Listeria monocytogenes

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

Salmonella, E. coli, and Listeria monocytogenes are all foodborne pathogens that are likely to be more prevalent due to climate change. These pathogens can cause a variety of illnesses, including food poisoning, diarrhea, and vomiting.

Multiple choice

What is the most common cause of Pelvic Inflammatory Disease (PID)?

  1. Chlamydia

  2. Gonorrhea

  3. Mycoplasma genitalium

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

Chlamydia is the most common cause of PID, accounting for about 75% of cases.

Multiple choice

What is the most common type of bacteria that causes PID?

  1. Chlamydia trachomatis

  2. Neisseria gonorrhoeae

  3. Mycoplasma genitalium

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

Chlamydia trachomatis is the most common type of bacteria that causes PID.

Multiple choice

What is the most common cause of the common cold?

  1. Bacteria

  2. Virus

  3. Fungus

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

The common cold is a viral infection of the nose and throat caused by a variety of viruses, including rhinoviruses, coronaviruses, and adenoviruses.

Multiple choice

What is the most common cause of diarrhea in children?

  1. Bacteria

  2. Virus

  3. Parasite

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

Viral gastroenteritis, commonly known as stomach flu, is the most common cause of diarrhea in children. It is caused by a variety of viruses, including rotavirus, norovirus, and adenovirus.

Multiple choice

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

  1. Bacteria

  2. Virus

  3. Fungus

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

Ear infections, also known as otitis media, are common in children. They are usually caused by bacteria, such as Streptococcus pneumoniae and Haemophilus influenzae.