Prevalence and Distribution of Potentially Human Pathogenic Vibrio spp. on German North and Baltic Sea Coasts

• DOI: 10.3389/fcimb.2022.846819
• Publication Date: 2022-07-22T15:16:22Z
• Authors: Susanne Fleischmann; Ilona Herrig; Jessica Wesp; Joscha Stiedl; Georg Reifferscheid; Eckhard Strauch; Thomas Alter; Nicole Brennholt
• Keywords: Vibrio vulnificus; Bathing; Baltic sea

Global ocean warming results in an increase of infectious diseases including elevated emergence Vibrio spp. Northern Europe. The European Centre for Disease Prevention and Control reported annual periods high to very risks infection with during summer months along the North Sea Baltic coasts. Based on those facts, risk infections associated recreational bathing coastal waters increases. To obtain overview seasonal spatial distribution potentially human pathogenic at German coasts, this study monitored V. cholerae , parahaemolyticus vulnificus seven areas from 2017 2018, heat wave event 2018. shows that all three species occurred water sediment samples sampling sites. Temperature was shown be main driving factor abundance, whereas community composition mainly modulated by salinity. A species-specific rapid observed temperatures above 10°C, reaching highest detection numbers abundances 4.5 log10 CFU+1/100 ml seawater 6.5 g sediment. Due salinity, dominant found predominantly detected samples. Most detections were estuarine both seas. concentrations sediments up log higher compared samples, indicating are important habitat persist environment. Antibiotic resistances against beta-lactam antibiotics (ampicillin 31%, cefazolin 36%, oxacillin penicillin 100%) trimethoprim-sulfamethoxazole (45%). Moreover, isolates harboring pathogenicity-associated genes such as trh well vcg cap / wcv 16S rRNA-type B variant detected. All sampled identified non-toxigenic non-O1/non-O139 serotypes. sum up, increasing coasts provoke encourage activities, resulting increased exposure rates. Owing a moderate is particular concern.