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 advantage of subunit vaccines over whole-cell vaccines?

  1. They are more effective in preventing infection.

  2. They are safer and have fewer side effects.

  3. They provide broader protection against different strains.

  4. They are easier to produce and store.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Subunit vaccines contain only specific antigens or components of the pathogen, rather than the whole organism. This makes them safer and less likely to cause side effects compared to whole-cell vaccines.

Multiple choice

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

  1. MMR, polio, and DTaP vaccines at birth

  2. Hepatitis B vaccine at 1 month

  3. Hib vaccine at 2 months

  4. Varicella vaccine at 12 months
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

The recommended vaccination schedule for children in the United States includes MMR, polio, and DTaP vaccines at birth, hepatitis B vaccine at 1 month, Hib vaccine at 2 months, and varicella vaccine at 12 months, among others.

Multiple choice

Which vaccine is recommended for pregnant women to prevent congenital rubella syndrome?

  1. MMR vaccine

  2. Tdap vaccine

  3. Influenza vaccine

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

MMR vaccine is recommended for pregnant women to prevent congenital rubella syndrome, a serious condition that can cause birth defects if a pregnant woman contracts rubella during pregnancy.

Multiple choice

What is the importance of herd immunity in vaccination?

  1. It protects individuals who cannot be vaccinated.

  2. It reduces the spread of infectious diseases.

  3. It eliminates the need for individual vaccination.

  4. It provides lifelong protection against all diseases.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Herd immunity is achieved when a large proportion of a population is vaccinated, making it less likely for an unvaccinated individual to come into contact with an infected person and become infected. This reduces the spread of infectious diseases and protects vulnerable individuals who cannot be vaccinated.

Multiple choice

Which vaccine is recommended for travelers to prevent yellow fever?

  1. MMR vaccine

  2. Tdap vaccine

  3. Influenza vaccine

  4. Yellow fever vaccine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yellow fever vaccine is recommended for travelers to prevent yellow fever, a mosquito-borne viral infection that can cause severe illness and death. It is required for entry into certain countries where yellow fever is endemic.

Multiple choice

What is the recommended vaccination schedule for adults in the United States?

  1. Tdap vaccine every 10 years

  2. Influenza vaccine annually

  3. Pneumococcal vaccine at age 65

  4. Zoster vaccine at age 50
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

The recommended vaccination schedule for adults in the United States includes Tdap vaccine every 10 years, influenza vaccine annually, pneumococcal vaccine at age 65, and zoster vaccine at age 50, among others.

Multiple choice

Which vaccine is recommended for healthcare workers to prevent hepatitis B?

  1. MMR vaccine

  2. Tdap vaccine

  3. Influenza vaccine

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

Hepatitis B vaccine is recommended for healthcare workers to prevent hepatitis B, a viral infection that can cause liver damage and liver cancer. It is transmitted through contact with infected blood or bodily fluids.

Multiple choice

What is the role of vaccination in eradicating diseases?

  1. It can eliminate the need for public health measures.

  2. It can provide lifelong protection against all diseases.

  3. It can reduce the incidence of disease to very low levels.

  4. It can cure chronic diseases.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vaccination can reduce the incidence of disease to very low levels, potentially leading to the eradication of certain diseases. Examples include smallpox, which was eradicated through a global vaccination campaign.

Multiple choice

Which vaccine is recommended for travelers to prevent typhoid fever?

  1. MMR vaccine

  2. Tdap vaccine

  3. Influenza vaccine

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

Typhoid vaccine is recommended for travelers to prevent typhoid fever, a bacterial infection that can cause fever, abdominal pain, and diarrhea. It is transmitted through contaminated food or water.

Multiple choice

Which of the following is an example of a beneficent act in science?

  1. Developing a new vaccine to prevent a deadly disease

  2. Conducting research to find a cure for cancer

  3. Sharing research findings with other scientists

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

All of the above are examples of beneficent acts in science. Beneficent acts are those that are intended to benefit others.

Multiple choice

Which type of vaccination program is commonly used to protect poultry against Newcastle disease?

  1. Live vaccine

  2. Inactivated vaccine

  3. Recombinant vaccine

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

Newcastle disease vaccination programs can utilize live vaccines, inactivated vaccines, or recombinant vaccines, depending on the specific circumstances and requirements.

Multiple choice

Which vaccine is recommended by the World Health Organization (WHO) to protect children against measles, mumps, and rubella?

  1. MMR vaccine

  2. DTaP vaccine

  3. Hepatitis B vaccine

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

The MMR vaccine is recommended by the WHO to protect children against measles, mumps, and rubella, and is a key component of childhood immunization programs.

Multiple choice

What is the primary method for preventing liver cancer?

  1. HPV vaccination

  2. Hepatitis B vaccination

  3. Regular exercise

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

Hepatitis B vaccination is crucial in preventing liver cancer, as chronic hepatitis B infection is a major risk factor for developing the disease.

Multiple choice

What was the name of the public health campaign that was launched in the United Kingdom in the 1940s to combat tuberculosis?

  1. The Mass Radiography Campaign

  2. The BCG Vaccination Campaign

  3. The Streptomycin Treatment Campaign

  4. The National Tuberculosis Association Campaign
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Mass Radiography Campaign was launched in the United Kingdom in 1943 and was used to screen people for tuberculosis.

Multiple choice

Which of the following is a vaccine-preventable disease?

  1. Measles

  2. Mumps

  3. Rubella

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

Measles, mumps, and rubella are all vaccine-preventable diseases.