What is a recombinant $DNA$ vaccine? Give two examples.

(N/A) recombinant vaccine is a vaccine produced through recombinant $DNA$ technology. This involves inserting the $DNA$ encoding an antigen that stimulates an immune response into bacterial or mammalian cells. Recombinant $DNA$ technology has allowed the production of antigenic polypeptides of pathogens in bacteria or yeast. Vaccines produced using this approach allow large-scale production and hence greater availability for immunization. Examples include:
$1$. Hepatitis $B$ vaccine (e.g.,$Recombivax$ $HB$) produced from yeast.
$2$. Japanese encephalitis vaccine (e.g.,$IMOJEV$) which is a $DNA$ vaccine.