Question

Now a days Corona viruses make havoc throughout the world and there is no single country

where no case of corona is found. Though all countries try to make vaccine for corona viruses

but no one get the success. Give the reasons why it is difficult to make vaccines for viral disease

as compare to bacterial or protozoanal diseases .

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Answer 1

Answer:

if I will describe it in my words than this would the answer..

Explanation:

The vaccine for viral diseases cant be made becuse it is caused by virus and the virus continously changes it mode/shape so it is difficult or might be impossible to make vaccine for viral diseases.

And tge bacterial and protoxonal diseases is cause by bacteria and protozoa respectively, and they can't change change themselves when they enters a certain body.So, that is the reason that bacterial and protozonal diseases can be cured and the viral diseases cant.

hooe it helped you....

Answer 2

Genetic material of viruses is rna It undergoes mutations ( change in genetic sequence ) So it changes its genetics when some vaccine or medicine is used. But they live in certain temperatures and replicate or reproduce only in the mode (the organism they affect). This means that corona would never affect a plant or at her organisms of lower levels. So the main reason why it is difficult to make a vaccine is the genetic mutation it undergoes. Please mark me the brainliest. Need one brainliest to reach to virtuoso rank Please!!!!!!