English, asked by jyotigupta9451, 9 months ago

Read the following passage and fill in the blanks with one word only.​

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Answered by guhabhavani
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Despite the tremendous (a) advancement in the medical field, no drug is yet (b)found for the treatment of viral diseases. Edward Jenner invented vaccination in 1796. A (c)vaccine is a preparation of heat killed micro-organisms. When a small (d) number of such micro-organisms is injected into the human body, the body (e) builds immunity against that particular microbe. This is the basic (f)principle of vaccination. Now vaccines are available (g) for a number of diseases. Such vaccines are (h) safe and risk free.

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