Biology · 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 zoology immune system vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Vaccine is

  1. Live oral pathogen

  2. Inactivated antigen

  3. Inactivated pathogen

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

A vaccine is a biological preparation that provides acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened (attenuated) or killed forms of the pathogen, its toxins or one of its surface proteins.
Therefore, the correct answer is option C.

Multiple choice evs - i infectious diseases and how to prevent them vaccine and immunization infectious diseases - transmission and prevention medicinal use of microorganism

Germ of germ-substance introduced into the body to prevent the occurrence of an infectious disease is known as

  1. Vaccine

  2. Toxoids

  3. Cytokine

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The germ of germ-substance introduced into the body to prevent the occurrence of an infectious disease is known as the vaccine. It provides active acquired immunity to a particular disease. 
So, the correct answer is 'Vaccine'.
Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

BCG vaccination is to be given to a new born child

  1. Immediately after child birth

  2. Within 48 hours

  3. Within seven days

  4. Within six month
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These are the antigenic substance produced from the causative agent of disease, which helps in providing immunity against one or more disease. BCG stands for Bacille Calmette Guerin, is the vaccine provided against the disease tuberculosis (TB). It is given to 6 months old babies.


Therefore the right answer is option "D".

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Statement (SI) : Injections provided against the tetanus is a passive immunization
Statement (SII) : Injection provided against the tetanus contains preformed antibodies

  1. Statements SI and SII are correct

  2. Statement SI is correct but SII is incorrect

  3. Statement SI is incorrect but SII is correct

  4. Statement SI is incorrect bur SII is correct
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Passive immunization is the immunity which develops due to the administration of antibodies for protection from the antigens persisting in the body. Tetanus injection is given against the bacteria  Clostridium tetani. It has antibodies administered which fight this infection.

So, the correct option is 'Statements SI and SII are correct'.

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Vaccines produced through genetic engineering are safe as?

  1. They contain antigen only from coat of pathogen

  2. They are least active form of virus

  3. They are attenuated form of pathogen

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

Genetically engineered (recombinant) vaccines are safe because they often use only specific antigens, such as surface proteins from the pathogen, rather than the whole live or killed organism.

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Identify the incorrect match for discovery of following vaccines:

  1. Injectable Polio vaccine : Jonas Salk

  2. Vaccine against Small box : Edward Jenner

  3. Rabies vaccine : Rober Koch

  4. Yellow Fever Vaccine : M. Theiler
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rabies, Anthrax and Cholera vaccines were discovered by Louis Pasteur

So, the correct answer is 'Rabies vaccine:Robert Koch'

Multiple choice evs - i infectious diseases and how to prevent them vaccine and immunization infectious diseases - transmission and prevention medicinal use of microorganism

Vaccines are

  1. Same as monoclonal antibodies

  2. Treated bacteria or viruses or one of their proteins

  3. MHC proteins

  4. Strands of nucleic acids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Some vaccines contain live, attenuated (weak or inactivated) microorganisms. Although most attenuated vaccines are viral, some are bacterial in nature. Examples include the viral diseases yellow fever, measles, rubella, and mumps, and the bacterial disease typhoid. The live Mycobacterium tuberculosis vaccine contains a virulently modified strain called BCG used to elicit an immune response to the vaccine. The live attenuated vaccine-containing strain Yersinia pestis is used for plague immunization. Rather than introducing an inactivated or attenuated micro-organism to an immune system, a fragment of it (protein subunit) can create an immune response. Examples include the subunit vaccine against hepatitis B virus that is composed of only the surface proteins of the virus, the virus-like particle (VLP) vaccine against human papillomavirus (HPV) that is composed of the viral major capsid protein. 

Therefore, the correct answer is option B.

Multiple choice evs - i infectious diseases and how to prevent them vaccine and immunization infectious diseases - transmission and prevention medicinal use of microorganism

Vaccine is a 

  1. Collection of antibiotics

  2. Collection of life saving drugs

  3. Collection of heat killed disease causing bacteria and viruses

  4. Collection of lysins
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A vaccine is a biological preparation which provides active acquired immunity to a particular disease. A vaccine contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. The agent stimulates the body's immune system to recognize the agent as a threat, destroy it and keep a record of it so that the immune system can more easily recognize and destroy any of these microorganisms that it later encounters.

Multiple choice evs - i infectious diseases and how to prevent them vaccine and immunization infectious diseases - transmission and prevention medicinal use of microorganism

Mark the correct statement

  1. The only available vaccine is BCG
  2. Children it decreases the risk of getting the infection by $20$% and the risk of infection turning into disease by nearly $60$%

  3. Both A and B

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The only available is BCG.
Children it decreases the risk of getting the infection by $20$% and the risk of infection turning into disease by nearly $60$%. tuberculosis is a communicable disease.

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Which people are at risk of getting a particular disease ?

  1. Who never had vaccine

  2. Who didn't receive all doses of vaccine

  3. Who travel to disease prevalent areas

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

Many people could still be at risk of getting a particular disease example polio. This includes those people who have never had the vaccine, those who didn't receive all doses of the vaccine, or those traveling to areas of the world where polio is still prevalent. Therefore, (d) is the correct answer.

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Vaccines are important for

  1. Children

  2. Adults

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • Vaccines are the suspension of weakened or killed microorganism which generates the immune response. 
  • It provides active acquired immunity to a particular disease. It is important for both, adults and children, as they can protect us from the many diseases.
So, the correct answer is option C.

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Vaccines are _______

  1. Always harmful

  2. Always useful

  3. It is useful or harmful it depends on the type of administration of vaccines

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

Vaccines are suspensions of killed or weakened microbes or products or derivatives of micro organisms. A vaccine produces immunity to a disease by stimulating the production of antibodies. So, it is always useful.