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 a common cause of urinary tract infections (UTIs)?

  1. Bacteria

  2. Viruses

  3. Fungi

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

Bacteria, particularly Escherichia coli (E. coli), are the most common cause of urinary tract infections.

Multiple choice

Which of the following diseases has the highest mortality rate among children under the age of five globally?

  1. Pneumonia

  2. Diarrhea

  3. Malaria

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

Pneumonia is the leading cause of death among children under the age of five globally, accounting for approximately 15% of all deaths in this age group.

Multiple choice

What is the primary cause of myocarditis?

  1. Viral infection

  2. Bacterial infection

  3. Autoimmune disorder

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

Viral infections, particularly those caused by Coxsackievirus B, are the most common cause of myocarditis.

Multiple choice

What is the primary mechanism by which viruses cause myocarditis?

  1. Direct invasion of heart muscle cells

  2. Immune system overreaction

  3. Formation of blood clots

  4. Narrowing of heart arteries
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The immune system's response to viral infection can lead to inflammation and damage to heart muscle cells.

Multiple choice

True or False: Myocarditis is always caused by a bacterial infection.

  1. True

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

Myocarditis can be caused by various factors, including viral infections, bacterial infections, autoimmune disorders, and certain medications.

Multiple choice

What is the most common cause of intussusception in neonates?

  1. Meconium ileus

  2. Hirschsprung's disease

  3. Viral infection

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

Viral infection is the most common cause of intussusception, a condition in which one part of the intestine slides into another part, in neonates.

Multiple choice

Which of the following is not a common foodborne illness?

  1. Salmonella

  2. E. coli

  3. Influenza

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

Influenza is not a foodborne illness.

Multiple choice

Which sexually transmitted infection (STI) can cause infertility in men?

  1. Chlamydia

  2. Gonorrhea

  3. Syphilis

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

Chlamydia is an STI that can cause infertility in men if left untreated.

Multiple choice

Honey has been used as a natural remedy for which of the following conditions?

  1. Colds

  2. Flu

  3. Cough

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

Honey has been traditionally used to alleviate symptoms of colds, flu, and cough due to its soothing and antibacterial properties.

Multiple choice

Which waterborne disease is the leading cause of death globally?

  1. Diarrhea

  2. Malaria

  3. HIV/AIDS

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

Diarrhea, caused by contaminated water, is the leading cause of death globally, particularly among children under the age of five.

Multiple choice

Which waterborne disease is a leading cause of blindness globally?

  1. Trachoma

  2. Onchocerciasis

  3. Schistosomiasis

  4. Guinea worm disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Trachoma, caused by a bacterium transmitted through contact with contaminated water, is the leading infectious cause of blindness worldwide.

Multiple choice

Which waterborne disease is a leading cause of disability globally?

  1. Schistosomiasis

  2. Lymphatic filariasis

  3. Guinea worm disease

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

Schistosomiasis, lymphatic filariasis, and guinea worm disease are all waterborne diseases that can cause significant disability and impair quality of life.

Multiple choice

Which waterborne disease is a leading cause of death among children under the age of five?

  1. Diarrhea

  2. Pneumonia

  3. Malaria

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

Diarrhea, caused by contaminated water, is the leading cause of death among children under the age of five, particularly in developing countries.

Multiple choice

Which of the following is a common sexually transmitted infection (STI) among adolescents?

  1. Chlamydia

  2. Gonorrhea

  3. Syphilis

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

Chlamydia, gonorrhea, and syphilis are all common STIs among adolescents.

Multiple choice

What is the legal definition of an infectious disease?

  1. A disease that is caused by a pathogen

  2. A disease that can be transmitted from person to person

  3. A disease that can cause serious illness or death

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

The legal definition of an infectious disease includes diseases that are caused by a pathogen, diseases that can be transmitted from person to person, and diseases that can cause serious illness or death.