Tag: pathogen and their mode of transmission

Questions Related to pathogen and their mode of transmission

Which of the following is not an air-borne disease?

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

  1. Black stem rust of wheat

  2. Coffee rust

  3. Blast of rice

  4. Potato mosaic disease

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Correct Option: D
Explanation:

An airborne disease is any disease that is caused by pathogens and transmitted through the air. Potato virus is transmitted by aphids by sticking to aphid mouth parts (stylet). The virus can be acquired from the infected plant within seconds, and transmitted to a healthy plant very fast. It can also be transmitted mechanically by machinery, tools, and damaging plants while walking through the field. Aphids are by far the most efficient means of transmission.

Therefore, the correct answer is option D.

Salmonella bacteria are usually spread via

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

  1. Raw meats, poultry and eggs

  2. Pickled vegetables

  3. Home-canned vegetables

  4. Raw vegetables

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Correct Option: A
Explanation:

Salmonella bacteria can be found in food products such as raw poultry, eggs, and beef, and sometimes on unwashed fruit. Food prepared on surfaces that previously were in contact with raw meat or meat products can, in turn, become contaminated with the bacteria. This is called cross-contamination.

Therefore, the correct answer is option A.

The bacteria can enter the food supply in a number of ways, including:

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

  1. Improper food handling

  2. Poor hygiene

  3. During poultry and meat processing

  4. All of the above

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Correct Option: D
Explanation:

Explanation: The most common type of enteritis is caused by food poisoning. You get it after ingesting food or water that is contaminated with bacteria.

Mycoplasma mycoides causes which of the following disease?

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

  1. Bovine pleuropneumonia

  2. Inflammation of genitals

  3. Agalactia

  4. None of these

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Correct Option: A

Which of the following is the most common carrier of pathogens ?

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

  1. helminth worm

  2. mosquito

  3. housefly

  4. butterfly.

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Correct Option: C
Explanation:

Housefly transmits various diseases like typhoid diarrhoea, dysentery, cholera, tuberculosis etc.

A patient suffering from a chronic disease

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

  1. has abrupt attack of disease

  2. suffers from disease for a very long period

  3. suffers from disease for short period

  4. all of these.

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Correct Option: B
Explanation:

Chronic diseases last for a long time, even as much as a lifetime. The chronic diseases have drastic long term effects on patient's health.

An insect bite may result in inflammation of that spot.This is triggered by the alarm chemicals such as 

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

  1. Histamine and dopamine

  2. Histamine and kinins

  3. Interferons and opsonins

  4. Interferons and histones

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Correct Option: B
Explanation:
  • Histamine is an organic nitrogenous compound which is involved in the inflammatory response and has a central role as a mediator of itching.  Histamine increases the permeability of the capillaries to white blood cells and some proteins at the site of inflammation.
  • Kinins are a group of substances formed in body tissue in response to injury or inflammation. They are polypeptides and cause vasodilation (increase blood flow) at the site of inflammation and smooth muscle contraction.
So, the correct answer is 'Histamine and Kinins'.

Crippling disease is caused due to poisoning of __________.

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

  1. Arsenic

  2. Lead

  3. Mercury

  4. Selenium

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Correct Option: A

Which of the following diseases is caused by Nosema bombycis ?

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

  1. Pebrine

  2. Flacheria

  3. Grasses

  4. Muscadine

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Correct Option: A

If a patient has to undergo dialysis, he is suffering from a severe ailment of the

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

  1. Respiratory systems

  2. Circulatory system

  3. Digestive system

  4. Excretory system

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Correct Option: D
Explanation:

Dialysis is the procedure used for cleaning the blood of a person by reparating the waste substance (urea) from it.