<prompt> Whole cell pertussis vaccine used to prevent infection can protect against?Bortedella parapertussis onlyMild forms of Bordetella pertussis onlyBoth Bordetella pertussis parapertussisOnly against severe Pertussis  <response>: c. Both Bordetella pertussis parapertussisRef: Clin Infect Dis. 2017Jun 15;6412:1795-1797Pertussis vaccine may induce cross-immunity has been found to have 66-82 effectiveness against parapertussis.Controversial; Some sources say: As measles can depress cell mediated immunity as BCG induces cell mediated immunity BCG should not be given along with measles or MMR; while some do not comment about it; So, there is not much recent evidence to substantiate the same. 