Biology ยท General Awareness

Vaccination and Immunity

997 Questions

This hub presents questions focused on vaccination and human immunity. It covers essential topics such as herd immunity, non-specific immunity, antigens, and historical vaccine developments. These concepts are crucial for general science sections in medical and civil service exams.

Herd immunity functionsNon-specific immunitySmallpox vaccinationInterferon proteinsAntigen propertiesImmunological amnesia

Vaccination and Immunity Questions

Multiple choice

What is the future of tuberculosis control?

  1. New vaccines

  2. New drugs

  3. Improved diagnostics

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

New vaccines, new drugs, and improved diagnostics are all promising developments that could help to improve tuberculosis control in the future.

Multiple choice

What is the most common type of cancer that can be prevented by vaccination?

  1. Cervical cancer

  2. Hepatitis B virus-associated liver cancer

  3. Human papillomavirus-associated cancers

  4. Measles-associated lymphoma
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Human papillomavirus-associated cancers are the most common type of cancer that can be prevented by vaccination.

Multiple choice

What is the name of the variant of COVID-19 that was first identified in Brazil in 2021?

  1. Alpha

  2. Beta

  3. Gamma

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

The variant of COVID-19 that was first identified in Brazil in 2021 is called Gamma.

Multiple choice

What is the name of the variant of COVID-19 that was first identified in the United Kingdom in 2020?

  1. Alpha

  2. Beta

  3. Gamma

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

The variant of COVID-19 that was first identified in the United Kingdom in 2020 is called Alpha.

Multiple choice

What is the name of the variant of COVID-19 that was first identified in the United States in 2020?

  1. Alpha

  2. Beta

  3. Gamma

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

There is no variant of COVID-19 that was first identified in the United States in 2020.

Multiple choice

What is the name of the variant of COVID-19 that was first identified in Russia in 2020?

  1. Alpha

  2. Beta

  3. Gamma

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

There is no variant of COVID-19 that was first identified in Russia in 2020.

Multiple choice

What is the recommended immunization schedule for children in the United States?

  1. MMR vaccine at 12 months

  2. DTaP vaccine at 2, 4, and 6 months

  3. Polio vaccine at 2, 4, and 6 months

  4. Hib vaccine at 2, 4, and 6 months
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

The recommended immunization schedule for children in the United States includes the MMR vaccine at 12 months, the DTaP vaccine at 2, 4, and 6 months, the polio vaccine at 2, 4, and 6 months, and the Hib vaccine at 2, 4, and 6 months.

Multiple choice

The process by which cancer cells evade the immune system is known as:

  1. Immune surveillance

  2. Immune evasion

  3. Immune tolerance

  4. Immune checkpoint inhibition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Immune evasion is the process by which cancer cells evade the immune system's attempts to destroy them. This can be achieved through various mechanisms, such as expressing molecules that inhibit immune cell function or by altering the expression of antigens on the cancer cell surface.

Multiple choice

Which of the following is a type of immunotherapy used to treat cancer?

  1. Checkpoint inhibitors

  2. Adoptive cell therapy

  3. Cancer vaccines

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

Checkpoint inhibitors, adoptive cell therapy, and cancer vaccines are all types of immunotherapy used to treat cancer. These therapies work by stimulating the immune system to recognize and attack cancer cells.

Multiple choice

Which of the following is an example of a disease prevention program?

  1. Vaccination

  2. Prenatal care

  3. Injury prevention programs

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

Vaccination, prenatal care, and injury prevention programs are all examples of disease prevention programs.

Multiple choice

What is the purpose of animal vaccination?

  1. To protect animals from diseases

  2. To prevent the spread of diseases from animals to humans

  3. To prevent the spread of diseases from animals to other animals

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

Animal vaccination is used to protect animals from diseases, to prevent the spread of diseases from animals to humans, and to prevent the spread of diseases from animals to other animals.

Multiple choice

Which of the following is NOT a major risk factor for measles?

  1. Being unvaccinated

  2. Living in a crowded or unsanitary environment

  3. Having a weakened immune system

  4. Traveling to a measles-endemic area
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Traveling to a measles-endemic area is not a major risk factor for measles, although it can increase the risk of exposure to the virus.

Multiple choice

Which of the following is a preventive measure for infectious diseases?

  1. Vaccination

  2. Handwashing

  3. Safe sex

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

Vaccination, handwashing, and safe sex are all preventive measures for infectious diseases. Vaccination can protect against specific infections, handwashing can help to prevent the spread of germs, and safe sex can help to prevent the transmission of STIs.

Multiple choice

Which of the following is a public health measure for controlling infectious diseases?

  1. Surveillance

  2. Contact tracing

  3. Quarantine

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

Surveillance, contact tracing, and quarantine are all public health measures that are used to control infectious diseases. Surveillance involves monitoring the occurrence of diseases in a population, contact tracing involves identifying and monitoring people who have been in contact with an infected person, and quarantine involves isolating infected people from the rest of the population.

Multiple choice

Which of the following is NOT a preventive measure for penile cancer?

  1. HPV vaccination

  2. Regular circumcision

  3. Smoking cessation

  4. Avoiding unprotected sex
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Smoking cessation is not a direct preventive measure for penile cancer, although it can improve overall health.