Question

Despite the tremendous (a) ..... in the medical field, no drug is yet (b)..
for the treatment of
viral diseases. Edward Jenner invented vaccination in 1796. A (c) is a preparation of heat
killed micro-organisms. When a small (d) ......... of such micro-organisms is injected into the
human body, the body (e) ....... immunity against that particular microbe. This is the basic
....... of vaccination. Now vaccines are available (g) ....... a number of diseases. Such vaccines
are (h) ....... and risk-free.
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Answer 1

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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