<prompt> Full blown Immunodeficiency syndrome is -High viral titres with low CD 4 countLow viral titres with low CD 4 countLow viral titres with high CD 4 countHigh viral titres with high CD 4 count  <response>: HIV infects CD4 T cells. Thus in full blown infection, there will be high viral titres with low CD4 count.Textbook of microbiology REF:Ananthanarayan and Paniker. Page no.:574 