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Human immune
response
Gene specifying herpes
simplex surface protein
Harmless vaccinia
(cowpox) virus
Herpes simplex virus
2. Herpes simplex
  gene is isolated.
3. Vaccinia DNA
    is extracted
    and cleaved.
4. Fragment containing
    surface gene
    combines with
    cleaved vaccinia DNA.
5. Harmless engineered
    virus (the vaccine)
   with surface like
    herpes simplex is
    injected into the
    human body.
6. Antibodies directed
    against herpes
simplex viral coat
are made.
1. DNA is
extracted.
Construction of a subunit vaccine against herpes simplex: