Tag: keeping diseases away

Questions Related to keeping diseases away

Example of bioweapon ___________.

  1. Anthrax

  2. Cholera

  3. Plague

  4. Ebola

  5. All of the above


Correct Option: E
Explanation:

Example of Bioweapon_


(1) Anthrax:-  It is caused by a spore-forming bacterium. It mainly affects animals. Humans can become infected through contact with an infected animal or by inhaling spores.

(2) Cholera:- A bacteria disease causing severe diarrhea and dehydration usually spread in water.

(3) Plague:-  The bubonic plague is caused by the disease yersinia pestis. It can spread through contact with infected fleas.

(4) Ebola:-   A virus that causes severe bleeding, organ failure and can lead to death. The human may spread the virus to other humans through contact with bodily fluids such as blood.

Anthrax is transmitted through ____________________.

  1. It usually spreads through ingestion of contaminated feed and water.

  2. Occurs by inhalation and biling flies

  3. Both A and B

  4. None of the above


Correct Option: C

Which of the following are the diseases caused by bacteria?

  1. Cancer

  2. Anthrax

  3. Hepatitis

  4. None of the above


Correct Option: B
Explanation:

Anthrax is an infectious disease caused by a bacterium called Bacillus anthracis, which can change into spores that can last for a long time in the environment before germinating. Various other diseases caused by bacteria are relapsing fever, bovine tuberculosis etc. 

Which famous biologist attenuated. the germs of anthrax disease by heating them and inoculated sheep with them, thus making the sheep resistant to anthrax? 

  1. Lazaro Spailanzani

  2. Louis Pasteur

  3. Joseph Lister

  4. Francesco Redi


Correct Option: B
Explanation:

Pasteur discovered that growing anthrax bacilli at about 42 °C made them unable to produce spores.  . His laboratory notebooks, now  show that he actually used heat and potassium dichromate similar to Toussaint's method, followed by inoculation of the tested animals with the weakened innoculum. The experiment, conducted  by him at Pouilly-le-Fort on sheep, goats and cows, was successful.

So, the correct answer is B. (Louis pasteur )

Choose the incorrect statement w.r.t Bioweapons 

  1. they are low cost weapons

  2. they cause more casualities than conventional weapons

  3. they are extremely difficult to detect

  4. Bacterium vibrio cholera created letter scare in 2001


Correct Option: A

Symptoms of Anthrax are __________________.

  1. Sudden rise in body temperature (104 - 10SF) & Loss of appetite i.e. off-feed

  2. Severe depression or dullness & Suspended rumination

  3. Increased respiration and heart rate & Bloat or tympany

  4. All of the above


Correct Option: D
Explanation:

Explanation: Symptoms of Anthrax include all of the above apart from Bleeding from natural openings like anus, nostrils, vulva etc. Sudden death in peracute cases. Dyspnoea - difficult breathing & Dysentery or diarrhoea.

The Anthrax disease is caused by

  1. Virus

  2. Bacteria

  3. Protozoa

  4. Helminthes


Correct Option: B

'Black death' is related with

  1. Plague

  2. Cancer

  3. Tuberculosis

  4. Measles


Correct Option: A
Explanation:

The plague disease is caused by Yersinia pestis (commonly present) in populations of fleas carried by ground rodents, including marmots, in various areas including Central Asia, Kurdistan, Western Asia, Northern India and Uganda. The 'Black Death' was one of the most devastating pandemics in human history, resulting in the deaths of an estimated 75 to 200 million people and peaking in Europe in the years 134653. Although there were several competing theories as to the etiology of the Black Death, analysis of DNA from victims in northern and southern Europe published in 2010 and 2011 indicates that the pathogen responsible was the Yersinia pestis bacterium, probably causing several forms of plague.

Which one of the following causes plague?

  1. Salmonella typhimurim

  2. Trichinella spiralis

  3. Yersinia pestis

  4. Leishmania donovani


Correct Option: C
Explanation:

Plague is a deadly infectious disease that is caused by the enterobacteria, Yersinia pestis. Contrary to popular belief, rats did not directly start the spread of the bubonic plague. It is mainly a disease in the fleas (Xenopsylla cheopis), that infested the rats, making the rats themselves the first victims of the plague. Infection in a human occurs, when a person is bitten by a flea that has been infected by biting a rodent that itself has been infected by the bite of a flea carrying the disease. The bacteria multiply inside the flea, sticking together to form a plug that blocks its stomach and causes it to starve. The flea then bites a host and continues to feed, even though it cannot quell its hunger, and consequently the flea vomits blood tainted with the bacteria back into the bite wound.

Biological name of insect (vector) carrying the plague

  1. Xenopsylla cheopis

  2. Anopheles mosquito

  3. Bacillus pestis

  4. Pediculus humanus


Correct Option: A
Explanation:

Plague is a deadly infectious disease that is caused by the enterobacteria Yersinia pestis. It is mainly a disease in the fleas, Xenopsylla cheopis, that infested the rats, making the rats themselves the first victims of the plague.
Therefore, the correct answer is option A.