This document summarizes several blood borne pathogens including cytomegalovirus, parvovirus B19, listeriosis, malaria, and syphilis. It describes their symptoms and modes of transmission, noting that some like cytomegalovirus, listeriosis, and syphilis can be transmitted from mother to fetus, potentially resulting in complications for the infant. The document provides details on potential symptoms for adults and infants, including fever, rash, enlarged organs, failure to thrive, and paralysis in the case of congenital syphilis.