List the causative organisms for the following diseases

CBSE Class 9 CBSE Class 9 Science
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1

List the causative organisms for the following diseases.
(i) Kala-azar,
(ii) Sleeping sickness,
(iii) Acne,
(iv) AIDS

2

The causative organisms are:
(i) Protozoan (Leishmartia) — Kala-azar
(ii) Trypanosoma — Sleeping sickness
(iii) Bacteria (Propionibacterium) — Acne
(iv) HIV virus — AIDS