A, B and C are three common STDs. A and C are caused by bacteria whereas B is caused by a virus D. The virus D reduces the immunity of the infected person to such a low level that the person can die of even very mild diseases.
(a) What could A and C be?
(b) What is B?
(c) Name the virus D?
(d) How can A, B and C be caused?
(e) Out of A, B and C, which one does not have a definite cure as yet?

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Solution

(a) A is gonorrhoea and C is syphilis.

(b) B is AIDS.

(c) The virus D is Human Immunodeficiency Virus (HIV).

(d) A, B and C can be caused by sexual contact with an infected person.

(e) AIDS (B) does not have a definite cure as yet.

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