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 difference between active and passive immunity?

  1. Active immunity is mediated by antibodies, while passive immunity is mediated by T cells.

  2. Active immunity is mediated by T cells, while passive immunity is mediated by antibodies.

  3. Active immunity is acquired through vaccination or infection, while passive immunity is acquired through the transfer of antibodies or T cells from another individual.

  4. Active immunity is long-lasting, while passive immunity is short-lived.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Active immunity is acquired through vaccination or infection, while passive immunity is acquired through the transfer of antibodies or T cells from another individual.

Multiple choice

What is the role of the MHC in adaptive immunity?

  1. To present antigens to T cells

  2. To produce antibodies

  3. To activate complement

  4. To kill infected cells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The MHC presents antigens to T cells, which then become activated and can respond to the infection.

Multiple choice

What is the role of antibodies in adaptive immunity?

  1. To activate complement

  2. To kill infected cells

  3. To regulate the immune response

  4. To produce antibodies
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Antibodies activate complement, which then kills infected cells.

Multiple choice

Which of the following is a live attenuated vaccine?

  1. Measles, Mumps, and Rubella (MMR) vaccine

  2. Polio vaccine

  3. Tetanus, Diphtheria, and Pertussis (Tdap) vaccine

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

Live attenuated vaccines contain weakened forms of the virus, allowing the body to develop immunity without causing illness.

Multiple choice

Which vaccine is recommended to protect against rotavirus, a common cause of severe diarrhea in infants and young children?

  1. Rotavirus vaccine

  2. Influenza vaccine

  3. Pneumococcal vaccine

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

The rotavirus vaccine is given orally and is effective in preventing rotavirus infection and its associated complications.

Multiple choice

Which vaccine is recommended to protect against whooping cough, a highly contagious respiratory infection?

  1. Tetanus, Diphtheria, and Pertussis (Tdap) vaccine

  2. Polio vaccine

  3. Measles, Mumps, and Rubella (MMR) vaccine

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

The Tdap vaccine is recommended for children, adolescents, and adults to protect against tetanus, diphtheria, and pertussis (whooping cough).

Multiple choice

Which vaccine is recommended to protect against chickenpox, a common childhood illness characterized by an itchy rash?

  1. Varicella vaccine

  2. Measles, Mumps, and Rubella (MMR) vaccine

  3. Polio vaccine

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

The varicella vaccine is effective in preventing chickenpox and its associated complications, such as pneumonia and encephalitis.

Multiple choice

Which vaccine is recommended to protect against tetanus, a serious bacterial infection that can cause muscle spasms and lockjaw?

  1. Tetanus, Diphtheria, and Pertussis (Tdap) vaccine

  2. Polio vaccine

  3. Measles, Mumps, and Rubella (MMR) vaccine

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

The Tdap vaccine is recommended for children, adolescents, and adults to protect against tetanus, diphtheria, and pertussis (whooping cough).

Multiple choice

Which vaccine is recommended to protect against mumps, a viral infection that can cause swelling of the salivary glands?

  1. Measles, Mumps, and Rubella (MMR) vaccine

  2. Polio vaccine

  3. Tetanus, Diphtheria, and Pertussis (Tdap) vaccine

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

The MMR vaccine is effective in preventing measles, mumps, and rubella, all of which are highly contagious viral infections.

Multiple choice

Which vaccine is recommended to protect against rubella, a viral infection that can cause a rash and joint pain?

  1. Measles, Mumps, and Rubella (MMR) vaccine

  2. Polio vaccine

  3. Tetanus, Diphtheria, and Pertussis (Tdap) vaccine

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

The MMR vaccine is effective in preventing measles, mumps, and rubella, all of which are highly contagious viral infections.

Multiple choice

What is the recommended age for receiving the first dose of the diphtheria vaccine, which protects against diphtheria, a serious bacterial infection that can cause respiratory problems and heart failure?

  1. 6 months

  2. 12 months

  3. 18 months

  4. 24 months
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The diphtheria vaccine is typically given in a series of five doses, with the first dose given at 6 months of age, followed by doses at 12 months, 18 months, 4-6 years, and 11-12 years.

Multiple choice

Which vaccine is recommended to protect against hepatitis A, a viral infection that can cause liver inflammation and jaundice?

  1. Hepatitis A vaccine

  2. Polio vaccine

  3. Tetanus, Diphtheria, and Pertussis (Tdap) vaccine

  4. Measles, Mumps, and Rubella (MMR) vaccine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The hepatitis A vaccine is effective in preventing hepatitis A infection and its associated complications, such as liver failure and chronic liver disease.

Multiple choice

Which of the following is NOT a type of HIV vaccine?

  1. mRNA vaccine

  2. DNA vaccine

  3. Vector vaccine

  4. Protein subunit vaccine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Protein subunit vaccine is not a type of HIV vaccine.

Multiple choice

What discovery led to the development of modern vaccines?

  1. Immunology

  2. Epidemiology

  3. Virology

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

Immunology, the study of the immune system, led to the development of vaccines, which protect individuals from infectious diseases by stimulating the production of antibodies.

Multiple choice

What was the name of the first successful vaccine?

  1. The smallpox vaccine

  2. The measles vaccine

  3. The polio vaccine

  4. The tetanus vaccine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The smallpox vaccine was developed by Edward Jenner in the 18th century.