1
Question
Which is correctly matched?
Disease
Causative Organism
Mode of Infection
a.
Typhoid
Salmonella
typhi
1.
With inspired air
b.
Pneumonia
Streptococcus
pneumoniae
2.
Droplet infection
c.
Elephantiasis
Wuchereria
bancrofti
3.
Contaminated
water and food
d.
Malaria
Plasmodium
vivax
Bite of male
Anopheles
Which is correctly matched?
| Disease | Causative Organism | Mode of Infection | ||
| a. | Typhoid | Salmonella typhi |
1. | With inspired air |
| b. | Pneumonia | Streptococcus pneumoniae |
2. | Droplet infection |
| c. | Elephantiasis | Wuchereria bancrofti |
3. | Contaminated water and food |
| d. | Malaria | Plasmodium vivax |
Bite of male Anopheles |
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Solution
The correct option is B Pneumonia - Streptococcus pneumoniae - Droplet infection
Typhoid :
Salmonella typhi bacteria causes typhoid fever in human beings. It is spread by contaminated food and water. The common symptoms include high fever, headache, stomachache, constipation, loss of appetite and in severe cases perforation in the intestine. This disease can be diagnosed by a Widal test. Hence the given details in option ‘A’ are not completely correct.
Figure : Salmonella typhi.
Pneumonia :
Pneumonia is a bacterial disease caused by Streptococcus pneumoniae or Haemophilus influenzae. A healthy person acquires the infection by inhaling the droplets or aerosols released by an infected person or by sharing glasses and utensils with an infected person. Pneumonia is characterised with accumulation of fluid or pus in the lungs. The pus develops as a result of inflammatory responses against pathogens that attack and destroy the alveoli in the lungs. This results in difficulty in breathing and other symptoms such as cough, fever, chills etc. Hence the given details in option ‘B’ are correct.
Figure : Streptococcus pneumoniae.
Elephantiasis :
Elephantiasis or filariasis is caused by Wuchereria bancrofti, a filarial worm. The pathogens are transmitted to a healthy person through the bite of an infected female Culex mosquito. They usually affect the lymphatic vessels and are characterised by the swelling of the legs, scrotum and other parts of the body. Hence the given details in option ‘C’ are not completely correct.
Figure : Wuchereria bancrofti.
Malaria :
Plasmodium is a protozoan parasite that causes malaria. It is coming under sporozoan parasites. It is a digenetic parasite which completes its life cycle in humans and female Anopheles mosquitoes. It is transmitted through mosquito bites. Plasmodium vivax causes benign tertian malaria.
Figure : Plasmodium.
Final answer :
(B) Pneumonia - Streptococcus pneumoniae - Droplet infection
Typhoid :
Salmonella typhi bacteria causes typhoid fever in human beings. It is spread by contaminated food and water. The common symptoms include high fever, headache, stomachache, constipation, loss of appetite and in severe cases perforation in the intestine. This disease can be diagnosed by a Widal test. Hence the given details in option ‘A’ are not completely correct.
Figure : Salmonella typhi.
Pneumonia :
Pneumonia is a bacterial disease caused by Streptococcus pneumoniae or Haemophilus influenzae. A healthy person acquires the infection by inhaling the droplets or aerosols released by an infected person or by sharing glasses and utensils with an infected person. Pneumonia is characterised with accumulation of fluid or pus in the lungs. The pus develops as a result of inflammatory responses against pathogens that attack and destroy the alveoli in the lungs. This results in difficulty in breathing and other symptoms such as cough, fever, chills etc. Hence the given details in option ‘B’ are correct.
Figure : Streptococcus pneumoniae.
Elephantiasis :
Elephantiasis or filariasis is caused by Wuchereria bancrofti, a filarial worm. The pathogens are transmitted to a healthy person through the bite of an infected female Culex mosquito. They usually affect the lymphatic vessels and are characterised by the swelling of the legs, scrotum and other parts of the body. Hence the given details in option ‘C’ are not completely correct.
Figure : Wuchereria bancrofti.
Malaria :
Plasmodium is a protozoan parasite that causes malaria. It is coming under sporozoan parasites. It is a digenetic parasite which completes its life cycle in humans and female Anopheles mosquitoes. It is transmitted through mosquito bites. Plasmodium vivax causes benign tertian malaria.
Figure : Plasmodium.
Final answer :
(B) Pneumonia - Streptococcus pneumoniae - Droplet infection
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