Two new cases of infection due to Listeria monocytogenes in two female
s with HIV are discussed, one of them with full blown AIDS and the oth
er pregnant and without knowledge of her seropositivity until that mom
ent- Its clinical manifestation as a meningeal manifestation and bacte
riemia, coincide with the few cases described until now; different hyp
othesis invoked until now are reviewed to justify this infrequent asso
ciation HIV-listeria.