All Stories

  1. Tracking the effects of the COVID-19 pandemic on viral gastroenteritis through wastewater-based retrospective analyses

    Article • The Science of The Total Environment, December 2023, Elsevier

    Dr Warish Ahmed

  2. The growing need to establish a global wastewater surveillance consortium for future pandemic preparedness

    Article • Journal of Travel Medicine, March 2023, Oxford University Press (OUP)

    Dr Warish Ahmed

  3. The environment, epidemics, and human health

    Article • Environmental Research, November 2022, Elsevier

    Avelino Núñez-Delgado, Dr Warish Ahmed

  4. Developing a Novel Bifidobacterium Phage Quantitative Polymerase Chain Reaction-Based Assay for Tracking Untreated Wastewater

    Article • SSRN Electronic Journal, January 2022, Elsevier

    Dr Warish Ahmed

  5. Decay of SARS-CoV-2 and surrogate murine hepatitis virus RNA in untreated wastewater to inform application in wastewater-based epidemiology

    Article • Environmental Research, December 2020, Elsevier

    Dr Warish Ahmed

  6. Editorial: Occupational safety and health: Emerging microbial contaminants and human health effects

    Article • Current Opinion in Environmental Science & Health, August 2020, Elsevier

    Dr Warish Ahmed

  7. Recycled water safety: Current status of traditional and emerging viral indicators

    Article • Current Opinion in Environmental Science & Health, August 2020, Elsevier

    Dr Warish Ahmed

  8. Enhanced insights from human and animal host-associated molecular marker genes in a freshwater lake receiving wet weather overflows

    Article • Scientific Reports, August 2019, Springer Science + Business Media

    Dr Warish Ahmed

  9. Novel crAssphage marker genes ascertain sewage pollution in a recreational lake receiving urban stormwater runoff

    Article • Water Research, November 2018, Elsevier

    Dr Warish Ahmed

  10. Decay of sewage-associated bacterial communities in fresh and marine environmental waters and sediment

    Article • Applied Microbiology and Biotechnology, June 2018, Springer Science + Business Media

    Dr Warish Ahmed

  11. Evaluation of the novel crAssphage marker for sewage pollution tracking in storm drain outfalls in Tampa, Florida

    Article • Water Research, March 2018, Elsevier

    Dr Warish Ahmed

  12. Microfluidic quantification of multiple enteric and opportunistic bacterial pathogens in roof-harvested rainwater tank samples

    Article • Environmental Monitoring and Assessment, January 2018, Springer Science + Business Media

    Dr Warish Ahmed

  13. Assessment of Water Quality in Roof-Harvested Rainwater Barrels in Greater Philadelphia

    Article • Water, January 2018, MDPI AG

    Dr Warish Ahmed

  14. Human and animal enteric viral markers for tracking the sources of faecal pollution

    Article • January 2018, Michigan State University Press

    Dr Warish Ahmed

  15. Abundance of Naegleria fowleri in roof-harvested rainwater tank samples from two continents

    Article • Environmental Science and Pollution Research, December 2017, Springer Science + Business Media

    Dr Warish Ahmed

  16. A multi-omics based ecological analysis of coastal marine sediments from Gladstone, in Australia's Central Queensland, and Heron Island, a nearby fringing platform reef

    Article • The Science of The Total Environment, December 2017, Elsevier

    Dr Warish Ahmed

  17. Human health risks for Legionella and Mycobacterium avium complex (MAC) from potable and non-potable uses of roof-harvested rainwater

    Article • Water Research, August 2017, Elsevier

    Dr Warish Ahmed

  18. Quantification of hookworm ova from wastewater matrices using quantitative PCR

    Article • Journal of Environmental Sciences, July 2017, Elsevier

    Pradip Gyawali , Dr Warish Ahmed

  19. Optimization of sampling strategy to determine pathogen removal efficacy of activated sludge treatment plant

    Article • Environmental Science and Pollution Research, June 2017, Springer Science + Business Media

    Dr Warish Ahmed

  20. Assessing risk associated with using urine as a liquid fertilizer

    Article • Microbial Risk Analysis, April 2017, Elsevier

    Professor Ashantha Goonetilleke, Dr Warish Ahmed

  21. Rainwater harvesting in American Samoa: current practices and indicative health risks

    Article • Environmental Science and Pollution Research, March 2017, Springer Science + Business Media

    Pradip Gyawali , Dr Warish Ahmed

  22. A Community Multi-Omics Approach towards the Assessment of Surface Water Quality in an Urban River System

    Article • International Journal of Environmental Research and Public Health, March 2017, MDPI AG

    Dr Warish Ahmed

  23. Comparison of culture-based, vital stain and PMA-qPCR methods for the quantitative detection of viable hookworm ova

    Article • Water Science & Technology Water Supply, March 2017, IWA Publishing

    Pradip Gyawali , Dr Warish Ahmed

  24. Cross-Comparison of Human Wastewater-Associated Molecular Markers in Relation to Fecal Indicator Bacteria and Enteric Viruses in Recreational Beach Waters

    Article • Applied and Environmental Microbiology, February 2017, ASM Journals

    Dr Warish Ahmed

  25. Seasonal Assessment of Opportunistic Premise Plumbing Pathogens in Roof-Harvested Rainwater Tanks

    Article • Environmental Science & Technology, January 2017, American Chemical Society (ACS)

    Dr Warish Ahmed

  26. Amplicon-based taxonomic characterization of bacteria in urban and peri-urban roof-harvested rainwater stored in tanks

    Article • The Science of The Total Environment, January 2017, Elsevier

    Dr Warish Ahmed

  27. A Review of Analytical Techniques and Their Application in Disease Diagnosis in Breathomics and Salivaomics Research

    Article • International Journal of Molecular Sciences, December 2016, MDPI AG

    Dr Warish Ahmed

  28. Amplicon-based profiling of bacteria in raw and secondary treated wastewater from treatment plants across Australia

    Article • Applied Microbiology and Biotechnology, November 2016, Springer Science + Business Media

    Dr Warish Ahmed

  29. Faecal pollution along the southeastern coast of Florida and insight into the use of pepper mild mottle virus as an indicator

    Article • Journal of Applied Microbiology, October 2016, Wiley

    Dr Warish Ahmed

  30. Public health implications of Acanthamoeba and multiple potential opportunistic pathogens in roof-harvested rainwater tanks

    Article • Environmental Research, October 2016, Elsevier

    Dr Warish Ahmed

  31. Evaluation of Glass Wool Filters and Hollow-Fiber Ultrafiltration Concentration Methods for qPCR Detection of Human Adenoviruses and Polyomaviruses in River Water

    Article • Water Air & Soil Pollution, August 2016, Springer Science + Business Media

    Dr Warish Ahmed

  32. Quantitative detection of viable helminth ova from raw wastewater, human feces, and environmental soil samples using novel PMA-qPCR methods

    Article • Environmental Science and Pollution Research, June 2016, Springer Science + Business Media

    Dr Warish Ahmed

  33. An approach to reduce false viability assessment of hookworm eggs with vital stains

    Article • Food and Waterborne Parasitology, June 2016, Elsevier

    Dr Warish Ahmed

  34. Current Status of Marker Genes of Bacteroides and Related Taxa for Identifying Sewage Pollution in Environmental Waters

    Article • Water, May 2016, MDPI AG

    Dr Warish Ahmed

  35. Determination of Ancylostoma caninum ova viability using metabolic profiling

    Article • Parasitology Research, May 2016, Springer Science + Business Media

    Dr Warish Ahmed

  36. Evidence of Avian and Possum Fecal Contamination in Rainwater Tanks as Determined by Microbial Source Tracking Approaches

    Article • Applied and Environmental Microbiology, May 2016, ASM Journals

    Dr Warish Ahmed

  37. Utility of Helicobacter spp. associated GFD markers for detecting avian fecal pollution in natural waters of two continents

    Article • Water Research, January 2016, Elsevier

    Dr Warish Ahmed

  38. Beyond Metabolomics: A Review of Multi-Omics-Based Approaches

    Article • January 2016, Springer Science + Business Media

    Dr Warish Ahmed

  39. Distributions of Fecal Markers in Wastewater from Different Climatic Zones for Human Fecal Pollution Tracking in Australian Surface Waters

    Article • Applied and Environmental Microbiology, December 2015, ASM Journals

    Dr Warish Ahmed

  40. Comparison of concentration methods for rapid detection of hookworm ova in wastewater matrices using quantitative PCR

    Article • Experimental Parasitology, December 2015, Elsevier

    Dr Warish Ahmed

  41. Rapid concentration and sensitive detection of hookworm ova from wastewater matrices using a real-time PCR method

    Article • Experimental Parasitology, December 2015, Elsevier

    Dr Warish Ahmed

  42. Microbial Source Tracking: Field Study Planning and Implementation

    Article • September 2015, ASM Journals

    Dr Warish Ahmed

  43. Toolbox Approaches Using Molecular Markers and 16S rRNA Gene Amplicon Data Sets for Identification of Fecal Pollution in Surface Water

    Article • Applied and Environmental Microbiology, July 2015, ASM Journals

    Dr Warish Ahmed

  44. Assessment of Genetic Markers for Tracking the Sources of Human Wastewater Associated Escherichia coli in Environmental Waters

    Article • Environmental Science & Technology, July 2015, American Chemical Society (ACS)

    Dr Warish Ahmed, Pradip Gyawali

  45. Biotin- and Glycoprotein-Coated Microspheres as Surrogates for Studying Filtration Removal of Cryptosporidium parvum in a Granular Limestone Aquifer Medium

    Article • Applied and Environmental Microbiology, April 2015, ASM Journals

    Dr Warish Ahmed

  46. Quantitative PCR measurements of Escherichia coli including Shiga Toxin-Producing E. coli (STEC) in Animal Feces and Environmental Waters

    Article • Environmental Science & Technology, February 2015, American Chemical Society (ACS)

    Dr Warish Ahmed

  47. Comparison of Concentration Methods for Quantitative Detection of Sewage-Associated Viral Markers in Environmental Waters

    Article • Applied and Environmental Microbiology, January 2015, ASM Journals

    Dr Warish Ahmed

  48. Monitoring of oil pollution at Gemsa Bay and bioremediation capacity of bacterial isolates with biosurfactants and nanoparticles

    Article • Marine Pollution Bulletin, October 2014, Elsevier

    Dr Warish Ahmed

  49. Relative inactivation of faecal indicator bacteria and sewage markers in freshwater and seawater microcosms

    Article • Letters in Applied Microbiology, June 2014, Oxford University Press (OUP)

    Dr Warish Ahmed

  50. Opportunistic pathogens in roof-captured rainwater samples, determined using quantitative PCR

    Article • Water Research, April 2014, Elsevier

    Dr Warish Ahmed

  51. Prevalence of Enterococcus Species and Their Virulence Genes in Fresh Water Prior to and after Storm Events

    Article • Environmental Science & Technology, February 2014, American Chemical Society (ACS)

    Dr Warish Ahmed

  52. Inactivation of faecal indicator bacteria in a roof-captured rainwater system under ambient meteorological conditions

    Article • Journal of Applied Microbiology, October 2013, Oxford University Press (OUP)

    Dr Warish Ahmed

  53. Sewage pollution in urban stormwater runoff as evident from the widespread presence of multiple microbial and chemical source tracking markers

    Article • The Science of The Total Environment, October 2013, Elsevier

    Dr Warish Ahmed

  54. Performance Characteristics of qPCR Assays Targeting Human- and Ruminant-AssociatedBacteroidetesfor Microbial Source Tracking across Sixteen Countries on Six Continents

    Article • Environmental Science & Technology, August 2013, American Chemical Society (ACS)

    Dr Warish Ahmed

  55. Evaluation of Bovine Feces-Associated Microbial Source Tracking Markers and Their Correlations with Fecal Indicators and Zoonotic Pathogens in a Brisbane, Australia, Reservoir

    Article • Applied and Environmental Microbiology, February 2013, ASM Journals

    Dr Warish Ahmed

  56. Sensitive detection of human adenovirus from small volume of primary wastewater samples by quantitative PCR

    Article • Journal of Virological Methods, February 2013, Elsevier

    Dr Warish Ahmed

  57. Fecal indicators and bacterial pathogens in bottled water from Dhaka, Bangladesh

    Article • Brazilian Journal of Microbiology, January 2013, FapUNIFESP (SciELO)

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  58. Prevalence of human pathogens and indicators in stormwater runoff in Brisbane, Australia

    Article • Water Research, December 2012, Elsevier

    Dr Warish Ahmed

  59. Occurrence of Virulence Genes Associated with Diarrheagenic Pathotypes in Escherichia coli Isolates from Surface Water

    Article • Applied and Environmental Microbiology, November 2012, ASM Journals

    Dr Warish Ahmed

  60. Escherichia coli and Enterococcus spp. in Rainwater Tank Samples: Comparison of Culture-Based Methods and 23S rRNA Gene Quantitative PCR Assays

    Article • Environmental Science & Technology, September 2012, American Chemical Society (ACS)

    Dr Warish Ahmed

  61. Consistency in the host specificity and host sensitivity of the Bacteroides HF183 marker for sewage pollution tracking

    Article • Letters in Applied Microbiology, August 2012, Oxford University Press (OUP)

    Dr Warish Ahmed

  62. Speciation and Frequency of Virulence Genes of Enterococcus spp. Isolated from Rainwater Tank Samples in Southeast Queensland, Australia

    Article • Environmental Science & Technology, May 2012, American Chemical Society (ACS)

    Dr Warish Ahmed

  63. An Attempt to Identify the Likely Sources of Escherichia coli Harboring Toxin Genes in Rainwater Tanks

    Article • Environmental Science & Technology, April 2012, American Chemical Society (ACS)

    Dr Warish Ahmed

  64. Evaluation of the nifH Gene Marker of Methanobrevibacter smithii for the Detection of Sewage Pollution in Environmental Waters in Southeast Queensland, Australia

    Article • Environmental Science & Technology, December 2011, American Chemical Society (ACS)

    Dr Warish Ahmed

  65. Escherichia coli virulence genes profile of surface waters as an indicator of water quality

    Article • Water Research, December 2011, Elsevier

    Dr Warish Ahmed

  66. Fecal Indicators and Zoonotic Pathogens in Household Drinking Water Taps Fed from Rainwater Tanks in Southeast Queensland, Australia

    Article • Applied and Environmental Microbiology, October 2011, ASM Journals

    Dr Warish Ahmed

  67. Occurrence of Intestinal and Extraintestinal Virulence Genes in Escherichia coli Isolates from Rainwater Tanks in Southeast Queensland, Australia

    Article • Applied and Environmental Microbiology, August 2011, ASM Journals

    Dr Warish Ahmed

  68. Microbiological Quality of Roof-Harvested Rainwater and Health Risks: A Review

    Article • Journal of Environmental Quality, January 2011, American Society of Agronomy

    Dr Warish Ahmed

  69. Source Tracking in Australia and New Zealand: Case Studies

    Article • January 2011, Springer Science + Business Media

    Dr Warish Ahmed

  70. Quantitative PCR assay of sewage-associatedBacteroidesmarkers to assess sewage pollution in an urban lake in Dhaka, Bangladesh

    Article • Canadian Journal of Microbiology, October 2010, Canadian Science Publishing

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  71. Health Risk from the Use of Roof-Harvested Rainwater in Southeast Queensland, Australia, as Potable or Nonpotable Water, Determined Using Quantitative Microbial Risk Assessment

    Article • Applied and Environmental Microbiology, September 2010, ASM Journals

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  72. Human and bovine adenoviruses for the detection of source-specific fecal pollution in coastal waters in Australia

    Article • Water Research, September 2010, Elsevier

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  73. Prevalence and Persistence of Escherichia coli Strains with Uropathogenic Virulence Characteristics in Sewage Treatment Plants

    Article • Applied and Environmental Microbiology, July 2010, ASM Journals

    Dr Warish Ahmed

  74. Implications of faecal indicator bacteria for the microbiological assessment of roof-harvested rainwater quality in southeast Queensland, Australia

    Article • Canadian Journal of Microbiology, June 2010, Canadian Science Publishing

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  75. Faecal sterols analysis for the identification of human faecal pollution in a non-sewered catchment

    Article • Water Science & Technology Water Supply, March 2010, IWA Publishing

    Dr Warish Ahmed

  76. Evaluating Sewage-Associated JCV and BKV Polyomaviruses for Sourcing Human Fecal Pollution in a Coastal River in Southeast Queensland, Australia

    Article • Journal of Environmental Quality, January 2010, American Society of Agronomy

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  77. Prevalence and occurrence of zoonotic bacterial pathogens in surface waters determined by quantitative PCR

    Article • Water Research, November 2009, Elsevier

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  78. Evaluation of multiple sewage-associated Bacteroides PCR markers for sewage pollution tracking

    Article • Water Research, November 2009, Elsevier

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  79. Comparison of molecular markers to detect fresh sewage in environmental waters

    Article • Water Research, November 2009, Elsevier

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  80. Comment on “Environmental Occurrence of the Enterococcal Surface Protein (esp) Gene is an Unreliable Indicator of Human Fecal Contamination”

    Article • Environmental Science & Technology, July 2009, American Chemical Society (ACS)

    Dr Warish Ahmed, Dr Valerie J Harwood

  81. A consensus: microbial source tracking (MST) in water

    Article • Microbiology Australia, January 2009, CSIRO Publishing

    Dr Warish Ahmed

  82. A real‐time polymerase chain reaction assay for quantitative detection of the human‐specific enterococci surface protein marker in sewage and environmental waters

    Article • Environmental Microbiology, November 2008, Wiley

    Dr Warish Ahmed

  83. Detection and source identification of faecal pollution in non-sewered catchment by means of host-specific molecular markers

    Article • Water Science & Technology Water Supply, August 2008, IWA Publishing

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  84. Population similarity analysis of indicator bacteria for source prediction of faecal pollution in a coastal lake

    Article • Marine Pollution Bulletin, August 2008, Elsevier

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  85. Phenotypic variations of enterococci in surface waters: analysis of biochemical fingerprinting data from multi-catchments

    Article • Journal of Applied Microbiology, August 2008, Oxford University Press (OUP)

    Dr Warish Ahmed

  86. Real-Time PCR Detection of Pathogenic Microorganisms in Roof-Harvested Rainwater in Southeast Queensland, Australia

    Article • Applied and Environmental Microbiology, July 2008, ASM Journals

    Dr Warish Ahmed, Professor Ashantha Goonetilleke

  87. Evaluation of the Host-Specificity and Prevalence of Enterococci Surface Protein () Marker in Sewage and its Application for Sourcing Human Fecal Pollution

    Article • Journal of Environmental Quality, January 2008, American Society of Agronomy

    Dr Warish Ahmed

  88. Evaluation of Bacteroides markers for the detection of human faecal pollution

    Article • Letters in Applied Microbiology, November 2007, Oxford University Press (OUP)

    Dr Warish Ahmed

  89. Sourcing faecal pollution: A combination of library-dependent and library-independent methods to identify human faecal pollution in non-sewered catchments

    Article • Water Research, August 2007, Elsevier

    Dr Warish Ahmed

  90. Detection of virulence genes in Escherichia coli of an existing metabolic fingerprint database to predict the sources of pathogenic E. coli in surface waters

    Article • Water Research, August 2007, Elsevier

    Dr Warish Ahmed

  91. Comparison of the efficacy of an existing versus a locally developed metabolic fingerprint database to identify non-point sources of faecal contamination in a coastal lake

    Article • Water Research, July 2006, Elsevier

    Dr Warish Ahmed

  92. Population similarity of enterococci and Escherichia coli in surface waters: A predictive tool to trace the sources of fecal contamination

    Article • Journal of Water and Health, April 2006, IWA Publishing

    Dr Warish Ahmed

  93. Host Species-Specific Metabolic Fingerprint Database for Enterococci and Escherichia coli and Its Application To Identify Sources of Fecal Contamination in Surface Waters

    Article • Applied and Environmental Microbiology, August 2005, ASM Journals

    Dr Warish Ahmed

  94. Evidence of septic system failure determined by a bacterial biochemical fingerprinting method

    Article • Journal of Applied Microbiology, April 2005, Oxford University Press (OUP)

    Dr Warish Ahmed