Tag: infectious diseases - transmission and prevention

Questions Related to infectious diseases - transmission and prevention

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


Correct Option: A
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'.

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


Correct Option: D
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".

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


Correct Option: A
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'.

 In the following vaccine, how many vaccines are killed vaccine                         


 B.C.G., Pertussis, Pneumonia, Rabies, TAB vaccine, Influenza.

  1. Five

  2. Four

  3. Three

  4. Two


Correct Option: C

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


Correct Option: A

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


Correct Option: C
Explanation:

Rabies, Anthrax and Cholera vaccines were discovered by Louis Pasteur

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

The first vaccination was discovered by:

  1. Robert Brown

  2. Robin cook

  3. Edward Jenner

  4. Alexander Fleming


Correct Option: C
Explanation:

Smallpox vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught cowpox did not later catch smallpox by showing that inoculated cowpox protected against inoculated smallpox.

So the correct option is C.

Penicillin was discovered by

  1. Waksman

  2. Dubois

  3. Roberk koch

  4. A. Flemming


Correct Option: D
Explanation:

Waksman is known for his discovery of streptomycin, the first antibiotic effective against tuberculosis.

Robert Koch is widely known for his work with anthrax, discovering the causative agent of the fatal disease to be Bacillus anthracis. Whereas Dubois was an American sociologist who raised his voice against color discrimination.
Sir Alexander Fleming was a biologist and pharmacologist most famous for his discovery of the antibiotic substance penicillin in 1928. It was first commercial antibiotic discovered from a fungus called Penicillium notatum. 
So, the correct answer is option D.

The human body is immune to which of the following diseases?

  1. Small pox

  2. Diabetes

  3. Tuberculosis

  4. Jaundice


Correct Option: A
Explanation:
Smallpox is an ancient disease caused by the variola virus. Early symptoms include high fever and fatigue. The virus then produces a characteristic rash, particularly on the face, arms and legs. The resulting spots become filled with clear fluid and later, pus, and then form a crust, which eventually dries up and falls off. Smallpox was fatal in up to 30% of cases. There is a vaccine against smallpox that was a key tool in the eradication of the disease. This vaccine does not contain the variola virus which causes smallpox, but a closely related virus called vaccinia. When this vaccine is given to humans, it protects them against smallpox. 
So the correct option is 'small pox'.