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Questions Related to evs - i

Vaccines are prepared from 

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

  1. Vitamins

  2. Blood

  3. Attenuated bacteria or inactivated viruses

  4. Plasma

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Correct Option: C
Explanation:

A vaccine is a biological preparation that provides active acquired immunity to a particular disease. Generally, vaccines are composed of the surface proteins of the virus, extracted from the blood serum of the infected patients.
Thus, the correct answer is option (C), 'Serum'.

Inoculation of a suspension of killed or attenuated pathogenic micro-organisms to stimulate the formation of antibodies is known as

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

  1. Vaccination

  2. Antibiotic treatment

  3. Serum therapy

  4. Transplantation

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Correct Option: A
Explanation:

A vaccine contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbes, 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 microbes that it later encounter.
Antibiotics are a type of antimicrobial, used in the treatment and prevention of bacterial infection.
The serum is the clear yellowish fluid which is obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot.
Antitoxins are antibodies that counteract a toxin.

Developing a vaccine for SARS is difficult because

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

  1. It spreads by infectious materials

  2. It is an enveloped virus

  3. It is constantly changing it's form

  4. It has ssRNA

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Correct Option: A

A vaccine is usually given?

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

  1. At any time

  2. At the time disease causing germs enters the body

  3. Before the symptoms of the disease appeared

  4. None of these

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Correct Option: A
Explanation:
A vaccine is a biological preparation that provides acquired immunity to a particular disease. Vaccines are made from microbes. The antigen in the vaccine is the same as the antigen on the surface of the disease-causing microbe. The vaccine stimulates the body to produce antibodies against the antigen in the vaccine. The antibodies created will be the same as those produced if the person was exposed to the pathogen. When the vaccinated person comes into contact with the disease-causing microbe, the antibodies recognize the pathogen and act against to it. Hence, the vaccine should be given before attacking of the disease. 

So, the correct answer is option C.

What is a vaccine?

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

  1. Treated bacteria, virus or protein

  2. Treated algae

  3. Activated fungi

  4. Plant preparation

Show answer
Correct Option: A
Explanation:

A vaccine is a biological preparation which provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened (attenuated) 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.

Thus, the correct answer is option A.