Isolation of Campylobacter Species from Stool Samples by Use of a Filtration Method: Assessment from a United States-Based Population

摘要

Campylobacter species other than C. jejuni and C. coli, such as C. concisus, C. upsaliensis, C. ureolyticus, C. sputorum, and others, are not isolated commonly from routine stool cultures due to the nonthermophilic nature of the species and/or inhibition by antimicrobial agents in commonly used selective medium (1). Except for C. upsaliensis, these species may not be detected in recently developed molecular multiplex stool pathogen test kits. Little is known about the occurrence of these species in U.S. patients. While species such as C. upsaliensis are known pathogens (2), the pathogenicity of many other species, such as C. concisus, is controversial (3). Recovery of Campylobacter spp. from stool cultures requires the addition of a filtration method and sufficient H2 in the microaerobic environment (1). The purpose of this study was to determine the frequency and clinical relevance of Campylobacter species from stool cultures in a United States-based clinical laboratory.