Vaccination and Immune Response

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Questions and Answers

Vaccination introduces antigens to the body, simulating an immune response and providing protection against disease-causing pathogens.

True (A)

Vaccines are exclusively administered through injection.

False (B)

Lymphocytes produce antigens to antibodies on the surface of bacteria or fungi.

False (B)

Injecting antigens alone into the body will not trigger an immune response.

<p>False (B)</p> Signup and view all the answers

Memory cells are produced after vaccination, enabling a quicker response to subsequent infections.

<p>True (A)</p> Signup and view all the answers

If vaccinated and later infected with the actual pathogen, the body's memory cells facilitate a faster and stronger antibody response.

<p>True (A)</p> Signup and view all the answers

Vaccination guarantees complete immunity, preventing any possibility of infection.

<p>False (B)</p> Signup and view all the answers

A vaccine consists of antibodies designed to neutralize specific pathogens.

<p>False (B)</p> Signup and view all the answers

The injection of dead antigens will result in memory cells not being generated.

<p>False (B)</p> Signup and view all the answers

The term 'vaccine' refers to the mix of multiple antibodies that are injected during vaccination.

<p>False (B)</p> Signup and view all the answers

A vaccination against one pathogen provides cross-protection against genetically similar pathogens.

<p>False (B)</p> Signup and view all the answers

The fact that a virus mutates can result in complications to the development of a new vaccine.

<p>True (A)</p> Signup and view all the answers

White blood cells create antigens against the pathogen to fight it off.

<p>False (B)</p> Signup and view all the answers

Vaccines work by directly attacking and destroying the pathogen within the body.

<p>False (B)</p> Signup and view all the answers

The process of vaccination involves the artificial supply of antibodies to an individual to protect against a specific disease.

<p>False (B)</p> Signup and view all the answers

Memory cells, produced after vaccination, remain in the body and can recognize future infections by the same pathogen.

<p>True (A)</p> Signup and view all the answers

A vaccination provides generalized immunity, protecting against a wide range of diseases.

<p>False (B)</p> Signup and view all the answers

If an individual who has been vaccinated encounters the actual pathogen, their white blood cells respond more slowly than those in an unvaccinated person.

<p>False (B)</p> Signup and view all the answers

Vaccination is only effective against viral infections, not bacterial or fungal diseases.

<p>False (B)</p> Signup and view all the answers

Vaccines can be developed quickly for viruses that constantly mutate because the antigens remain the same.

<p>False (B)</p> Signup and view all the answers

Flashcards

What is vaccination?

The process of artificially supplying antigens to a person to stimulate an immune response and protect against disease.

How do lymphocytes react?

Lymphocytes produce antibodies to antigens on the surface of bacteria/fungus.

Injected antigens impact?

Injecting antigens allows lymphocytes to recognize them, produce antibodies and create memory cells.

What are vaccines?

Dead/weakened pathogens that help prevent disease in the future

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What happens to the pathogen?

A sample of the pathogen is weakened or killed, creating a vaccination and long term immunity

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Why isn't every vaccine universal?

Antibodies are specific to antigens. A polio vaccine won't protect against rubella because the viruses are different.

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Why no cold vaccine?

It's hard because the antigens constantly mutate.

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Study Notes

  • Vaccination leads to the production of memory cells.
  • Memory cells allow future antibody production to occur sooner, faster, and in greater quantity when exposed to a pathogen.
  • Vaccination is the process of artificially supplying antigens to a person, often through injection.
  • This process stimulates an immune response, protecting against disease-causing pathogens.
  • Lymphocytes produce antibodies to antigens on the surface of bacteria or fungi.
  • Injecting antigens alone into the body is enough for lymphocytes to recognize them and produce antibodies.
  • Memory cells are produced as a result of antigen recognition and antibody production.
  • Memory cells provide protection against future infections by the actual bacteria or fungus.
  • Injecting the body with just an antigen, dead bacteria/fungi/viruses, or weakened bacteria/fungi/viruses is called vaccination.
  • The antigen mix is called a vaccine.
  • Vaccination protects from diseases caused by bacteria, fungi, and viruses.

Steps in Vaccination

  • A sample of the pathogen is weakened or killed.
  • A small amount of the dead or inactive pathogen is put into a sterile liquid.
  • The solution/mixture is injected into a person, which is called a vaccination.
  • The person's white blood cells make antibodies against the pathogen.
  • The antibodies are specific to the antigens found in the vaccination.
  • Some white blood cells remain and will recognize the pathogen if it infects the body in the future.
  • In the future, if the pathogen enters the body, the white blood cells work much more quickly to produce the specific antibodies needed to destroy the pathogen.

Quick Check Questions

  • A vaccination against the polio virus will not protect against rubella because the antibodies produced are specific to the antigens of the polio virus and will not recognize the rubella virus antigens.
  • A vaccination against the cold virus has not been developed because the cold virus is constantly mutating to produce different antigens, making it difficult to develop a vaccine.

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