Tag: pathogen and their mode of transmission

Questions Related to pathogen and their mode of transmission

A disease spread directly by animal bites is 

  1. Syphilis

  2. Scarlet Fever

  3. Rabies

  4. Malaria


Correct Option: C
Explanation:

Rabies is a viral disease that causes inflammation of the brain in humans and other mammals. Early symptoms can include fever and tingling at the site of exposure. Other symptoms include violent movements, uncontrolled excitement, fear of water, an inability to move parts of the body, confusion, and loss of consciousness. Rabies virus is typically transmitted to humans by the bite of an infected mammal, often a carnivore or a bat.

So, the correct answer is 'Rabies'.

The animals that are reservoirs of rabies are:

  1. wolf

  2. jackal

  3. bat

  4. all the above


Correct Option: D
Explanation:

In the United States, several distinct rabies virus variants have been identified in terrestrial mammals, including raccoons, skunks, wolfs, foxes, and coyotes. In addition to these terrestrial reservoirs, several species of insectivorous bats are also reservoirs for rabies.

So the correct option is D.

__________ is  a viral disease.

  1. Typhoid

  2. Leprosy

  3. Rabies

  4. Ringworm


Correct Option: C
Explanation:

Rabies is a viral disease that causes inflammation of the brain in humans and other mammals. Early symptoms can include fever and tingling at the site of exposure.

Introduction of vaccine by injection is called _________.

  1. Inoculation

  2. Vaccination

  3. A & B

  4. None of the above


Correct Option: A

Which of the following pathogens causes whooping cough?

  1. Legionella spp.

  2. Bordetella pertussis

  3. Vibrio cholerae

  4. Brucella melitensis


Correct Option: A

Which of the following diseases is spread by animal bite?

  1. Pneumonia

  2. Tuberculosis

  3. Cholera

  4. Rabies


Correct Option: D
Explanation:

Rabies is an acute viral disease of the central nervous system that affects all warm-blooded animals and is usually transmitted to humans by a bite from an infected dog.

Disease which affects central nervous system is

  1. Polio

  2. Jaundice

  3. Rabies

  4. Both A and C


Correct Option: D
Explanation:
Rabies is a viral disease that is spread most often from the bite of a rabid animal to another animal or to a human. The rabies virus affects the central nervous system including the brain and spinal cord of humans and animals. During the incubation period, the time between exposure to the virus and the appearance of symptoms, the virus travels along nerves towards the brain. This process takes an average of one to three months, but can range from several days to several years after exposure. The infection causes inflammation of the brain and spinal cord that can lead to encephalopathy and later, death.

Hydrophobia is related to

  1. Rabies

  2. Hepatitis

  3. Yellow fever

  4. Tetanus


Correct Option: A
Explanation:

Rabies causes hydrophobia in the encephalitic stage which means when it affects the brain and causes swelling and inflammation of multiple areas of the brain. Hence, it affects the complex swallowing areas in the brain. Initially into the course of the disease, the patient has involuntary contractions of neck muscles when he drinks water. At later stages of disease, the patient starts contracting his muscles even at the thought of water. Rabies virus is a neurotropic virus which means that it travels through nerves because of its preference to attach to acetylcholine receptors in the neurons. 

Which of the following disease is communicable and 100% fatal if not controlled immediately?

  1. Coronary heart attack

  2. Atherosclerosis

  3. Rabies

  4. Typhoid


Correct Option: C
Explanation:

Rabies is a deadly disease caused by a virus that attacks the central nervous system (brain and spinal cord). Infected mammals can transmit rabies virus to humans and other mammals. Rabies is almost always fatal once symptoms appear. People usually get exposed to the rabies virus when an infected animal bites them. Exposure may also occur if saliva from a rabid animal enters an open cut or mucous membrane (eyes, nose or mouth).

Therefore, the correct answer is option C.

Treatment of rabies was discovered by

  1. Lord Lister

  2. Ronald Ross

  3. Louis Pasteur

  4. Edward Jenner


Correct Option: C
Explanation:

Louis Pasteur was the first person who uses the live virus in vaccination and developed the method for the attenuation of virulent microorganisms that is the basis of vaccination. He developed vaccines against cholera, anthrax and rabies. Thus, the correct answer is option C.