The vaccines in their broadest sense are grouped into licensed and experimental .Making an up to dates in licensed vaccines means search for refinement or new generation for the already known entities. While the experimental vaccines covered the developing, still in evaluation processes or those to be approved and licensed vaccines. Tracing an up to dates for experimental vaccines implied;Gathering, deduction, mining scattered; Press materials, personal interviews, preliminary published observations in order to reach to a formatted publishable forms. The present book "VACCINOLOGY LETTERS" did...