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 potential complication of tracheitis in infants?

  1. Croup

  2. Pneumonia

  3. Sudden infant death syndrome (SIDS)

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

Croup, pneumonia, and sudden infant death syndrome (SIDS) are all potential complications of tracheitis in infants.

Multiple choice

What is the most common mode of transmission for Hepatitis A?

  1. Contact with contaminated food or water

  2. Contact with infected blood or bodily fluids

  3. Sexual contact

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

Hepatitis A is primarily transmitted through the ingestion of contaminated food or water.

Multiple choice

Which type of hepatitis is transmitted through contact with infected blood or bodily fluids?

  1. Hepatitis A

  2. Hepatitis B

  3. Hepatitis C

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

Hepatitis B is transmitted through contact with infected blood or bodily fluids, such as through sharing needles or unprotected sex.

Multiple choice

What is the primary mode of transmission for Hepatitis C?

  1. Contact with contaminated food or water

  2. Contact with infected blood or bodily fluids

  3. Sexual contact

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

Hepatitis C is primarily transmitted through contact with infected blood or bodily fluids, often through sharing needles or unprotected sex.

Multiple choice

Which type of hepatitis is caused by excessive alcohol consumption?

  1. Hepatitis A

  2. Hepatitis B

  3. Hepatitis C

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

Alcoholic hepatitis is a type of non-viral hepatitis caused by excessive alcohol consumption.

Multiple choice

Which type of hepatitis can lead to chronic liver disease and liver cancer?

  1. Hepatitis A

  2. Hepatitis B

  3. Hepatitis C

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

Chronic hepatitis B and C can lead to chronic liver disease and liver cancer if left untreated.

Multiple choice

Which type of hepatitis can lead to liver failure and require a liver transplant?

  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

Advanced stages of hepatitis B and C, as well as severe alcoholic hepatitis, can lead to liver failure and require a liver transplant.

Multiple choice

Which foodborne illness is caused by the bacteria Salmonella?

  1. E. coli

  2. Salmonella

  3. Listeria

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

Salmonella is a foodborne illness caused by the bacteria Salmonella.

Multiple choice

Which foodborne illness is caused by the bacteria E. coli?

  1. E. coli

  2. Salmonella

  3. Listeria

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

E. coli is a foodborne illness caused by the bacteria E. coli.

Multiple choice

Which foodborne illness is caused by the bacteria Listeria?

  1. E. coli

  2. Salmonella

  3. Listeria

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

Listeria is a foodborne illness caused by the bacteria Listeria.

Multiple choice

Which foodborne illness is caused by the bacteria Clostridium botulinum?

  1. E. coli

  2. Salmonella

  3. Listeria

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

Botulism is a foodborne illness caused by the bacteria Clostridium botulinum.

Multiple choice

True or False: Gingivitis is a contagious disease.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gingivitis is not a contagious disease. It is caused by poor oral hygiene and other factors, such as smoking and diabetes.

Multiple choice

Which of the following is NOT a common type of culture used to diagnose infectious diseases?

  1. Blood culture

  2. Urine culture

  3. Sputum culture

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

Stool culture is not a common type of culture used to diagnose infectious diseases, as it is typically used to diagnose gastrointestinal disorders.

Multiple choice

What is the most common type of specimen collected for the diagnosis of infectious diseases?

  1. Blood

  2. Urine

  3. Sputum

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

Blood is the most common type of specimen collected for the diagnosis of infectious diseases, as it can be used to detect a wide range of microorganisms.

Multiple choice

What is the most common type of surveillance used to monitor infectious diseases?

  1. Active surveillance

  2. Passive surveillance

  3. Sentinel surveillance

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

Passive surveillance is the most common type of surveillance used to monitor infectious diseases, as it relies on healthcare providers to report cases of infection.