Annual variations and effects of temperature on Legionella spp. and other potential opportunistic pathogens in a bathroom.

ABSTRACT: Opportunistic pathogens (OPs) in drinking water, like Legionella spp., mycobacteria, Pseudomonas aeruginosa, and free-living amobae (FLA) are a risk to human health, due to their post-treatment growth in water systems. To assess and manage these risks, it is necessary to understand their variations and environmental conditions for the water routinely used. We sampled premise tap (N _cold = 26, N _hot = 26) and shower (N _shower = 26) waters in a bathroom and compared water temperatures to levels of OPs via qPCR and identified Legionella spp. by 16S ribosomal RNA (rRNA) gene sequencing. The overall occurrence and cell equivalent quantities (CE L^-1) of Mycobacterium spp. were highest (100 %, 1.4 × 10⁵), followed by Vermamoeba vermiformis (9

SUBMITTER: Lu J 

PROVIDER: S-EPMC6155451 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature