Mention the causative organism and mode of transmission of the following diseases
a) Tuberculosis
b) Polio
c) Malaria
d) Typhoid
e) Hepatitis B
f) Chicken pox

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Solution

Diseases

Causative organisms

Transmission

Tuberculosis Mycobacterium tuberculosis Droplet infection

Poliomyelitis (polio);
9−14 days
Poliovirus Droplet infection, faeces and nasal secretion

Malaria Protozoa Mosquito

Typhoid Salmonella typhi Faecal contamination of food and water

Hepatitis B
Hepatitis virus Blood to blood and though sexual contact

Chickenpox; 14−20 days Varicella zoster Droplet infection

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Diseases	Causative organisms	Transmission
Tuberculosis	Mycobacterium tuberculosis	Droplet infection
Poliomyelitis (polio); 9−14 days	Poliovirus	Droplet infection, faeces and nasal secretion
Malaria	Protozoa	Mosquito
Typhoid	Salmonella typhi	Faecal contamination of food and water
Hepatitis B	Hepatitis virus	Blood to blood and though sexual contact
Chickenpox; 14−20 days	Varicella zoster	Droplet infection