Characterization of the genetic structure of mcr-1 gene among Escherichia coli isolates recovered from surface waters and sediments from Ecuador

Science of The Total Environment, Volume 806, Part 2, 1 February 2022, 150566.

William Calero-Cáceres, Daniel Tadesse, Katherine Jaramillo, Xavier Villavicencio, Efraín Mero, Liliana Lalaleo, Caitlin Welsh, José E. Villacís, Emmanuelle Quentin, Henry Parra, Maria Soledad Ramirez, Anthony D. Harries, José L. Balcázar

Upcoming IWA Webinar –Traditional and molecular indicators to characterise sewage in wastewater-based epidemiology

3 DECEMBER 2021 | 14:00 (London Time)

We are pleased to announce the upcoming IWA webinar organised by the Specialist Group on Health Related Water Microbiology (HRWM)’

The webinar will take place on Friday 3 December 2021 at 15:00 Amsterdam (CEST), 14:00 London (BST), 09:00 New York (EDT), 21:00 Beijing (CST). Register Now !


The webinar will give an overview on available microbial source tracking (MST) technologies and faecal indicators to support wastewater-based epidemiology (WBE). The webinar will focus on data interpretation, improving data comparability and quality control from sewage surveillance activities. Presentation/discussion of MST markers and indicators (bacterial, viral, others) which enable:

  • the specific tracking of human sewage pollution,
  • the characterisation of unknown sewage effluents,
  • the normalisation of SARS-CoV-2 qPCR data, and
  • the determination of microbial/viral treatment efficacies of WWTP.

Molecular (e.g. PCR based) and cultivation-based diagnostic methods will also be discussed.


Andreas H. Farnleitner ICC Water & Health, TU Wien and KL Krems Austria

Joan B. Rose Michigan State University

Joy Kwanrawee Sirikanchana Chulabhorn Research Institute, Thailand

Anicet Blanch University of Barcelona, Spain

Orin Shanks US Environmental Protection Agency, USA