A
Asja Korajkic
Researcher at United States Environmental Protection Agency
Publications - 44
Citations - 2717
Asja Korajkic is an academic researcher from United States Environmental Protection Agency. The author has contributed to research in topics: Indicator bacteria & Coliphage. The author has an hindex of 17, co-authored 38 publications receiving 1768 citations.
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Journal ArticleDOI
Enterococci in the Environment
Muruleedhara N. Byappanahalli,Meredith B. Nevers,Asja Korajkic,Zachery R. Staley,Valerie J. Harwood +4 more
TL;DR: The mounting evidence for widespread extraenteric sources and reservoirs of enterococci demonstrates the versatility of the genus Enterococcus and argues for the necessity of a better understanding of their ecology in natural environments, as well as their roles as opportunistic pathogens and indicators of human pathogens.
Journal ArticleDOI
Microbial source tracking markers for detection of fecal contamination in environmental waters: relationships between pathogens and human health outcomes
Valerie J. Harwood,Christopher Staley,Christopher Staley,Brian D. Badgley,Kim Borges,Asja Korajkic +5 more
TL;DR: An integrated understanding of the advantages and drawbacks of the many MST methods targeting human sources advanced over the past several decades will benefit managers, regulators, researchers, and other users of this rapidly growing area of environmental microbiology.
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Comparison of virus concentration methods for the RT-qPCR-based recovery of murine hepatitis virus, a surrogate for SARS-CoV-2 from untreated wastewater.
Warish Ahmed,Paul M. Bertsch,Aaron Bivins,Kyle Bibby,Kata Farkas,Amy Gathercole,Eiji Haramoto,Pradip Gyawali,Asja Korajkic,Brian R. McMinn,Jochen F. Mueller,Stuart L. Simpson,Wendy Smith,Erin M. Symonds,Kevin V. Thomas,Rory Verhagen,Masaaki Kitajima +16 more
TL;DR: The results suggest that absorption-extraction methods with minimal pretreatment or without manipulation can provide suitably rapid, cost-effective and relatively straightforward recovery of enveloped viruses in wastewater.
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Decay of SARS-CoV-2 and surrogate murine hepatitis virus RNA in untreated wastewater to inform application in wastewater-based epidemiology.
Warish Ahmed,Paul M. Bertsch,Kyle Bibby,Eiji Haramoto,Joanne Hewitt,Flavia Huygens,Pradip Gyawali,Asja Korajkic,Shane Riddell,Samendra P. Sherchan,Stuart L. Simpson,Kwanrawee Sirikanchana,Erin M. Symonds,Rory Verhagen,Seshadri S. Vasan,Masaaki Kitajima,Aaron Bivins +16 more
TL;DR: Wastewater-based epidemiology (WBE) demonstrates potential for COVID-19 community monitoring; however, data on the stability of SARS-CoV-2 RNA in wastewater are needed to interpret WBE results, and MHV is suggested as suitable persistence surrogate.
Journal ArticleDOI
Minimizing errors in RT-PCR detection and quantification of SARS-CoV-2 RNA for wastewater surveillance
Warish Ahmed,Stuart L. Simpson,Paul M. Bertsch,Kyle Bibby,Aaron Bivins,Linda L. Blackall,Sílvia Bofill-Mas,Albert Bosch,João Brandão,Phil M. Choi,Phil M. Choi,Mark Ciesielski,Erica Donner,Nishita D'Souza,Andreas H. Farnleitner,Andreas H. Farnleitner,Daniel Gerrity,Raul Gonzalez,John F. Griffith,Pradip Gyawali,Charles N. Haas,Kerry A. Hamilton,Hapuarachchige Chanditha Hapuarachchi,Valerie J. Harwood,Rehnuma Haque,Greg Jackson,Stuart J. Khan,Wesaal Khan,Masaaki Kitajima,Asja Korajkic,Giuseppina La Rosa,Blythe A. Layton,Erin K. Lipp,Sandra L. McLellan,Brian R. McMinn,Gertjan Medema,Suzanne Metcalfe,Wim G. Meijer,Jochen F. Mueller,Heather M. Murphy,Coleen C. Naughton,Rachel T. Noble,Sudhi Payyappat,Susan Petterson,Tarja Pitkänen,Tarja Pitkänen,Verónica Beatriz Rajal,Brandon Reyneke,Fernando A. Roman,Joan B. Rose,Marta Rusiñol,Michael J. Sadowsky,Laura Sala-Comorera,Yin Xiang Setoh,Samendra P. Sherchan,Kwanrawee Sirikanchana,Wendy Smith,Joshua A. Steele,Rosalie Subburg,Erin M. Symonds,Phong K. Thai,Kevin V. Thomas,Josh Tynan,Simon Toze,Janelle R. Thompson,Andrew S. Whiteley,Judith Chui Ching Wong,Daisuke Sano,Stefan Wuertz,Stefan Wuertz,Irene Xagoraraki,Qian Zhang,Amity G. Zimmer-Faust,Orin C. Shanks +73 more
TL;DR: A technical review of factors that can lead to false-positive and -negative errors in the surveillance of SARS-CoV-2, culminating in recommendations and strategies that can be implemented to identify and mitigate these errors.