43.

Write the causative agent and the most important symptom of each of the following diseases : 

(i) Whooping cough 
(ii) Tuberculosis
(iii) Measles
(iv) Malaria

(i) Whooping cough :

Causative Agent : Bacterium, Bordetella pertusis.

Symptom : Severe coughing with characteristic gasping whoop and vomiting.

(ii) Tuberculosis :

Causative Agent : Bacterium, Mycobacterium tuberculosis.

Symptom : Fever, general weakness, loss of appetite, persistent coughing with yellowish and blood stained sputum.

(iii) Measles :

Causative Agent : Rubella virus.

Symptom : Common cold, headache, fever, cough, inflammation of mucous membrane of nasal and buccopharyngeal region, skin eruption as small red spots.

(iv) Malaria :

Causative Agent: Plasmodium

Symptom : High fever (upto 105-106°F) with shaking chill, severe headache and nausea.