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CBSE Class 9 Answered

Why is it difficult to develop vaccinations against virus-caused diseases?
Asked by saipass | 06 Feb, 2011, 06:17: PM
Expert Answer
Dear student,
Viruses are on the brink of living and non-living andd use the cellular machinery of other living organisms to multiply further. Hence antibiotics do not work against them. It is not difficult to create vaccinations against all viruses, except a few like HIV. This is because HIV virus mutates easily and attacks the immune system of the body, thereby weakening the cells which fight against the viruses and keep us safe.
Regards, Team Topperlearning
Answered by | 08 Feb, 2011, 07:45: AM
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