Nosocomial infection in newborns by Pichia anomala in a Brazilian intensive care unit.
Disseminated candidiasis is the most common nosocomial fungal infection, and Candida albicans has been reported to account for 50% to more than 70% of cases of invasive candidiasis. However, recent reports have also suggested the emergence of infections caused by non-albicans species. In addition, less-common pathogenic yeasts (Malassezia, Trichosporon, Rhodotorula, Debaryomyces and Pichia) have recently been reported, with increased frequency, as causes of nosocomial infections with high mortality. This article describes two cases of fungemia caused by Pichia anomala in newborns that occurred in an intensive care unit (ICU), in November 2004 at the Instituto da Criança (Pediatric Institute) of the Hospital das Clínicas of the School of Medicine, São Paulo University, Brazil. The principal factors related to virulence (proteinase and phospholipase) and the susceptibility of the isolated strains to antifungal agents were also evaluated, and the biotype of each strain was determined through the use of an epidemiological marker (killer biotype).
Paula
Claudete R
CR
Departamento de Microbiologia, Instituto de Ciências Biomédicas II, Universidade de São Paulo, São Paulo, Brasil. crpmicol@uol.com.br
Krebs
Vera L J
VL
Auler
Marcos E
ME
Ruiz
Luciana S
LS
Matsumoto
Flavia E
FE
Silva
Elza H
EH
Diniz
Edna M A
EM
Vaz
Flavio A C
FA
D000935:Antifungal Agents / Q000494:pharmacology; D001938:Brazil / Q000453:epidemiology; D002404:Catheterization / Q000009:adverse effects; D003428:Cross Infection / Q000453:epidemiology / Q000382:microbiology*; D004271:DNA, Fungal / Q000235:genetics; D004359:Drug Therapy, Combination; D017809:Fatal Outcome; D005260:Female; D016469:Fungemia / Q000453:epidemiology / Q000382:microbiology*; D005865:Gestational Age; D006785:Hospitals, University; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000453:epidemiology / Q000382:microbiology*; D015278:Intensive Care Units, Pediatric; D055646:Killer Factors, Yeast; D008826:Microbial Sensitivity Tests; D017720:Molecular Epidemiology; D009181:Mycoses / Q000453:epidemiology / Q000382:microbiology*; D009183:Mycotoxins / Q000494:pharmacology; D010447:Peptide Hydrolases / Q000378:metabolism; D010740:Phospholipases / Q000378:metabolism; D010843:Pichia / Q000145:classification / Q000187:drug effects / Q000302:isolation & purification / Q000502:physiology; D016133:Polymerase Chain Reaction
D000935:Antifungal Agents; D004271:DNA, Fungal; D055646:Killer Factors, Yeast; D009183:Mycotoxins; D010740:Phospholipases; D010447:Peptide Hydrolases