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- 1. Why do we need to correct myths and misconception about communicable disease? 2. To whom we consult the fact information about communicable disease?1 ) Compare the different defence mechanism the immune System uses ( Specific/non-specific) and discuss advantages and disadvantages of a specific health screening programme ?4 If you are working in a diagnostic lab, what will be your choice among Monoclonal or Polyclonal Antibodies method for detection of specific pathogen? Give sufficient justification for selection as well as rejection of any given methods.