“…Gray et al (83) used the method described on the yellowing pages in studies on comparative virulence of smooth and rough cultures of L. monocytogenes. In view of the well-established fact that many human patients, particularly newborn ones, develop listeric skin lesions (89,136,235), plus the recent reports of skin lesions developing on the hands and arms of veterinarians after handling infected aborted bovine fetuses (51,120,189), and skin lesions due to L. monocytogenes of more obscure origin (157,173), perhaps such lesions should be investigated further.…”