Tag: pathogen and their mode of transmission

Questions Related to pathogen and their mode of transmission

How is infection transferred from one human to another ? 

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Coughing or sneezing

  2. Both A and C

  3. Through contaminated hands

  4. Through soil

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Correct Option: B
Explanation:

There are numerous ways through which infections can be transmitted. Coughing by the infected person can cause transfer as the organisms coming out are inhaled by the healthy person. No use of proper sanitization can also cause transmission of diseases. Therefore, (b) is the correct answer.

What is latent infection?

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Does not show signs and symptoms at first

  2. It can be treated at the earliest

  3. Shows signs and symptoms at the earliest

  4. Both B and C

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Correct Option: A
Explanation:

Latent infection is one which do not show any signs or symptoms at first but can naturally develop over time. Therefore, (a) is the correct answer.

Which of the following groups of the disease, the causative microorganism and disease symptom is/are true?

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Malaria - Protozoan - Fever and chill

  2. Hepatitis-B - Virus - Swollen liver

  3. Cholera - Bacteria - Vomiting and diarrhoea

  4. All of the above

Show answer
Correct Option: D
Explanation:
Malaria is a protozoan disease caused by Plasmodium. The symptoms are periodic chills and fever. 
Hepatitis is the condition in which the cells of the liver gets inflamed and swollen. This may be due to an infection by the hepatitis B virus.
Vibrio cholerae is the bacterium which is responsible for the disease, cholera. The symptoms of the disease are muscle cramps due to loss of electrolytes, diarrhoea, vomiting, dehydration, the passage of watery stools, etc.
Thus, the correct answer is option D. 

Match the following diseases in column-I with their pathogens in column-II.

Column-I Column-II
a. Measles 1. Protozoa
b. Cholera 2. Virus
c. Kalaazar 3. Bacteria
evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. a-1, b-3, c-2

  2. a-1, b-2, c-3

  3. a-2 ,b-1, c-3

  4. a-2, b-3, c-1

Show answer
Correct Option: D
Explanation:

Measles is caused by the type of paramyxovirus known as rubella virus.

Cholera is caused by the bacterium  Vibrio cholerae. 
Leishmaniasis or kala-azar is a common disease caused by protozoan Leishmania donovani.
Thus, the correct answer is option D. 

Hemorrhagic Septicaemia is also known as ___________.

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Pasturellosis

  2. Shipping fever

  3. Ghatsurp

  4. All of the above

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Correct Option: D
Explanation:

Explanation: It is an actual infectious disease of cattle, buffalo, sheep and goat. It distances transportation. In India, the disease is enzootic in nature. Etiology environmental conditions, malnutrition and long distance transportation. In India, the disease is enzootic in nature.

Diseases that spread by vectors, such as mosquitoes, are

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Encephalitis and Malaria.

  2. Syphilis and AIDS.

  3. Tuberculosis and Sleeping sickness.

  4. Kala-azar and SARS.

Show answer
Correct Option: A
Explanation:

Encephalitis is the disorder in which there is inflammation of the meninges of the brain. This disease may be caused due to bacterial or viral infection and is transmitted by the vector which is the Culex mosquito. Malaria is a disorder which is caused by the protozoan Plasmodium vivax. The disease is transmitted by the Anopheles mosquito. 

Thus, the correct answer is option A. 

Which disease is spread by Housefly?

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Dengue fever

  2. Encephalitis

  3. Filariasis

  4. Gangrene.

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Correct Option: D
Explanation:

$\rightarrow $ Gangrene.


$\Rightarrow$ Gangrene is a term that described dead or dying tissue that occurs because the local blood supply is totally cut off or not in that sufficient way to keep the body tissue in alive way.

Vectors are

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Physalia, Musca domestica and Anopheles

  2. Amoeba Physalia and Musca

  3. Anopheles, Musca and Culex

  4. All the above.

Show answer
Correct Option: C
Explanation:
  • A disease vector is an agent who carries and transmits an infectious pathogen into another living organism.
  • Female Anopheles mosquito serves as vector for malaria.
  • Musa(house fly)serves as a vector for at least 65 diseases to humans, including typhoid fever, dysentery, cholera, poliomyelitis, yaws, anthrax, tularemia, leprosy, and tuberculosis.
  • Culex mosquito serves as a vector for arbovirus infections such as West Nile virus, Japanese encephalitis, or St. Louis encephalitis, but also filariasis.
  • Hence Vectors are Anopheles, Musca, and Culex.
  • So, the correct answer is 'Anopheles, Musca, and Culex'.

Droplet infection is a mode of 

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. Direct transmission

  2. Indirect transmission

  3. Pathogen spread through mosquitoes

  4. Fomite transmission

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Correct Option: A
Explanation:

Droplet infection is an infection transmitted from one individual to another by droplets of moisture expelled from the upper respiratory tract through sneezing or coughing. Direct transmission occurs when there is physical contact between an infected person and a susceptible person. Droplet infection is a mode of direct transmission in which the infection is transmitted by coughing, sneezing.

So, the correct answer is 'Direct transmission'.

Out of pneumonia, gangrene, yellow fever, dengue fever, malaria and elephantiasis, mosquitoes transmit diseases

evs - i infectious diseases and how to prevent them energy and health infectious diseases - transmission and prevention credit communicable diseases pathogen and their mode of transmission

  1. 6

  2. 4

  3. 3

  4. 2.

Show answer
Correct Option: B
Explanation:
  • Diseases transmitted by mosquitoes include: malaria, dengue,Yellow fever,Elephantiasis West Nile virus, chikungunya, filariasis, tularemia, dirofilariasis, Japanese encephalitis, Saint Louis encephalitis, Western equine encephalitis, Eastern equine encephalitis, Venezuelan equine encephalitis, Ross River fever, Barmah Forest fever, La Crosse encephalitis, and Zika fever,as well as newly detected Keystone virus and Rift Valley fever.
  • Out of pneumonia, gangrene, yellow fever, dengue fever, malaria and elephantiasis, mosquitoes transmit 4 diseases they are Yellow fever, dengue, malaria, and elephantiasis.
  • So, the correct answer is '4'.