Jan Siemens

The paper shows that wastewater and colloidal soil extracts select for antibiotic-resistant Acinetobacter baylyi despite low antibiotic concentrations, suggesting complex contaminant mixtures drive resistance.

This study compares the release of QACs, QAC resistance genes, and QAC tolerant bacteria from livestock and human waste streams, finding higher concentrations in human waste and sewage sludge.

This study shows that montmorillonite reduces but does not eliminate ciprofloxacin's growth-inhibitory effect on bacteria in soil environments.

This study evaluates the impact of wastewater treatment on antimicrobial resistant bacteria in soils and their transfer to cilantro plants in Mexico, finding that treatment does not reduce resistant bacteria abundance.