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

What is the most common cause of neonatal sepsis?

  1. Group B Streptococcus

  2. Escherichia coli

  3. Staphylococcus aureus

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

Group B Streptococcus (GBS) is the most common cause of neonatal sepsis, accounting for approximately 50% of cases.

Multiple choice

What is the most common complication of neonatal sepsis?

  1. Meningitis

  2. Pneumonia

  3. Necrotizing enterocolitis

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

Meningitis is the most common complication of neonatal sepsis.

Multiple choice

What is the most common pathogen causing neonatal sepsis in developing countries?

  1. Escherichia coli

  2. Klebsiella pneumoniae

  3. Pseudomonas aeruginosa

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

Escherichia coli is the most common pathogen causing neonatal sepsis in developing countries.

Multiple choice

Which of the following is a potential health risk for migrants who are living in overcrowded housing?

  1. Tuberculosis

  2. Meningitis

  3. Measles

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

Tuberculosis, meningitis, and measles are all potential health risks for migrants who are living in overcrowded housing.

Multiple choice

Which of the following is NOT a factor that can contribute to the spread of infectious diseases?

  1. Globalization

  2. Climate change

  3. Antimicrobial resistance

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

Improved sanitation is not a factor that can contribute to the spread of infectious diseases, as it helps to prevent the transmission of diseases.

Multiple choice

What is the most common waterborne disease worldwide?

  1. Diarrhea

  2. Cholera

  3. Typhoid fever

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

Diarrhea is the most common waterborne disease worldwide, causing significant morbidity and mortality, especially among children in developing countries.

Multiple choice

Which waterborne disease is caused by a bacterium that produces a toxin that affects the nervous system?

  1. Cholera

  2. Typhoid fever

  3. Botulism

  4. Vibrio vulnificus infection
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Botulism is a waterborne disease caused by a bacterium that produces a toxin that affects the nervous system. It can be fatal if not treated promptly.

Multiple choice

Which waterborne disease is caused by a virus that can cause severe gastrointestinal symptoms?

  1. Norovirus

  2. Rotavirus

  3. Hepatitis A

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

Norovirus is a waterborne disease caused by a virus that can cause severe gastrointestinal symptoms, including vomiting and diarrhea.

Multiple choice

What was the name of the pandemic that began during the Trump presidency?

  1. COVID-19

  2. SARS

  3. MERS

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

COVID-19, caused by the SARS-CoV-2 virus, is the pandemic that began during the Trump presidency.

Multiple choice

Which population group in the United States experiences a disproportionately high burden of infectious diseases?

  1. African Americans

  2. Hispanic Americans

  3. Native Americans

  4. Asian Americans

  5. White Americans
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

African Americans experience a disproportionately high burden of infectious diseases compared to other population groups in the United States. This disparity is due to a combination of factors, including poverty, lack of access to healthcare, and discrimination.

Multiple choice

What is the leading cause of death from infectious diseases among Native Americans?

  1. Tuberculosis

  2. Pneumonia

  3. Influenza

  4. HIV/AIDS

  5. Hepatitis C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tuberculosis is the leading cause of death from infectious diseases among Native Americans. This disparity is due to a combination of factors, including poverty, lack of access to healthcare, and discrimination.

Multiple choice

Which infectious disease is a leading cause of morbidity and mortality among Hispanic Americans?

  1. Dengue fever

  2. Chagas disease

  3. Malaria

  4. HIV/AIDS

  5. Hepatitis B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

HIV/AIDS is a leading cause of morbidity and mortality among Hispanic Americans. This disparity is due to a combination of factors, including poverty, lack of access to healthcare, and discrimination.

Multiple choice

Which infectious disease is a leading cause of morbidity and mortality among Asian Americans?

  1. Hepatitis B

  2. Tuberculosis

  3. Malaria

  4. Dengue fever

  5. HIV/AIDS
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hepatitis B is a leading cause of morbidity and mortality among Asian Americans. This disparity is due to a combination of factors, including cultural beliefs and practices, lack of access to healthcare, and discrimination.

Multiple choice

Which infectious disease is a leading cause of morbidity and mortality among White Americans?

  1. Influenza

  2. Pneumonia

  3. Tuberculosis

  4. HIV/AIDS

  5. Hepatitis C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Influenza is a leading cause of morbidity and mortality among White Americans. This disparity is due to a combination of factors, including age, underlying health conditions, and lack of access to healthcare.

Multiple choice

What is the primary mode of transmission for Influenza?

  1. Airborne droplets

  2. Direct contact

  3. Fomite transmission

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

Influenza can be transmitted through airborne droplets, direct contact, and fomite transmission. This makes it a highly contagious and deadly disease.