[Hepatic abscess and bacteremia due to Lactobacillus rhamnosus].

The incidence of severe infections caused by Lactobacillus spp. is very low. This paper reports a case of a liver abscess and bacteremia due to Lactobacillus rhamnosus.

[Beta-lactam antibiotic sensitivity in Aeromonas spp. of clinical, animal, and environmental origin].

Susceptibility to beta-lactam antibiotics was investigated in Aeromonas spp. Microorganisms were isolated from both, clinical and water creek samples, as well as from processed raw chicken carcasses. Aeromonas like colonies were identified by means of Aerokey II and API 20 E System (Bio-Merieux).

Intestinal bleeding and occlusion associated with Shiga toxin-producing Escherichia coli O127:H21.

We report a case of a nine-year old boy with vomiting, abdominal pain and fever, who underwent surgery with a diagnosis of appendicitis in Mendoza and from whom a Shiga toxin-producing Escherichia coli (STEC) O127:H21 strain was recovered. Forty-eight hours after surgery he presented bilious vomiting and two episodes of intestinal bleeding. Laboratory findings included: hematocrit, 35%; blood urea nitrogen, 0.

[Investigation of LIsteria monocytogenes in soft cheeses].

Listeria monocytogenes has been recognized as a bacteria that produces severe illness in animals and humans. Considering the importance of the presence of L. monocytogenes in soft paste cheeses, a study of diverse cheeses from supermarkets of direct sale to the public was carried out.

[Hemolytic uremic syndrome in children of Mendoza, Argentina: association with Shiga toxin-producing Escherichia coli infection].

Shiga toxin-producing Escherichia coli (STEC) has been associated with pathogenesis of hemolytic uremic syndrome (HUS) worldwide. The aim of the present study was to characterize the HUS cases reported in Mendoza and to determine their association with STEC infection. From July 1994 through June 1996 thirty-six patients with HUS were admitted to Hospital Pediátrico "Dr.