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Residence hall wastewater testing supports App State’s COVID-19 management strategy

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Eric Greer in Appalachian State University’s Facilities Operations pours a wastewater sample from a university residence hall into a collection container. The sample will be tested by faculty in App State’s Department of Biology as part of the university’s COVID-19 testing strategy. Photo by Marie Freeman

“The advantage of using wastewater surveillance is that it allows us to survey a large number of students in an efficient and cost-effective manner.”

Dr. Jenna Valley, lab supervisor for molecular and microbiology in App State’s Department of Biology, on residence hall wastewater testing at App State

By Megan Bruffy
Posted April 15, 2021 at 9:27 a.m.

BOONE, N.C. — While face coverings, physical distancing and testing events have come to define COVID-19 for many colleges and universities, including Appalachian State University, a key component of managing the global pandemic runs in the sewers beneath their campuses.

“The advantage of using wastewater surveillance is that it allows us to survey a large number of students in an efficient and cost-effective manner.”

Dr. Jenna Valley, lab supervisor for molecular and microbiology in App State’s Department of Biology, on residence hall wastewater testing at App State

This spring, App State is enhancing its residence hall wastewater testing strategy — which began in fall 2020. The university now regularly collects samples from eight of its residence halls and tests the samples on campus within the Department of Biology.

“It’s important that the university maintains a comprehensive testing strategy that includes residence hall wastewater testing. This allows us to detect cases earlier and help to reduce the spread of COVID-19.”

Jason Marshburn, App State’s director of environmental health, safety and emergency management

Wastewater testing allows institutions to capture data on the presence of SARS-CoV-2, the virus that causes COVID-19, in fecal matter — from both symptomatic and asymptomatic infections. This information can be a “leading indicator of changes in COVID-19 burden in a community,” according to the Centers for Disease Control and Prevention.

“It’s important that the university maintains a comprehensive testing strategy that includes residence hall wastewater testing. This allows us to detect cases earlier and help to reduce the spread of COVID-19.”

Jason Marshburn, App State’s director of environmental health, safety and emergency management

“It’s important that the university maintains a comprehensive testing strategy that includes residence hall wastewater testing,” said Jason Marshburn, App State’s director of environmental health, safety and emergency management. “This allows us to detect cases earlier and help to reduce the spread of COVID-19.”

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This image shows the workflow for capturing, preparing and testing wastewater samples from Appalachian State University’s residence halls. Three samples are collected from each residence hall over the course of approximately one and a half hours. The three samples are combined in the lab, heat-treated to inactivate any virus that may be present, and concentrated by vacuum filtration. Next, RNA is extracted from the sample and used to make cDNA, which is analyzed for two SARS-CoV-2 markers using droplet digital PCR. The results are reported and help inform targeted testing efforts. In the sample “report results” image, blue dots represent samples positive for SARS-CoV-2 and grey dots represent samples negative for SARS-CoV-2. Graphic submitted

Research indicates wastewater surveillance can identify COVID-19 hot spots five to seven days before they are reflected by clinical testing results and is intended to identify trends over time, as well as the absence or presence of the virus.

App State’s residence hall wastewater testing strategy is led by Marshburn and the following individuals:

  • Dr. Ece Karatan, vice provost for research, who has also directed several Honors College theses.
  • Dr. Alex F. Howard, interim assistant vice chancellor in the Division of Student Affairs and director of Wellness and Prevention Services.
  • Dr. Jenna Valley, lab supervisor for molecular and microbiology in the Department of Biology.
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Appalachian State University has added wastewater testing for its residence halls to its COVID-19 management strategy. Faculty members are conducting testing in the Department of Biology. Dr. Michael Opata, assistant professor of immunology and infectious diseases, center, and Dr. Jenna Valley, lab supervisor for molecular and microbiology in the Department of Biology, far left, are pictured adding a reagent to wastewater samples, which helps maximize the efficacy of the subsequent filtration. Photo by Chase Reynolds

Enhancing residence hall wastewater surveillance

App State resumed its residence hall wastewater testing in February, after students returned from winter break.

Karatan said the fundamental difference in the university’s testing last fall and this spring is that now “the entire process is being conducted on our campus.” In fall 2020, the samples were tested off-site at the University of North Carolina Institute of Marine Sciences.

“The main benefit of being able to conduct the testing on-site is increased efficiency,” Valley said. “Not having to outsource for testing at other facilities allows for a faster turnaround of results, which in turn expedites subsequent mitigation strategies informed by those results.”

Testing on-site also increases the chances of detecting the virus because the sample can degrade in the time it takes to ship it to an outside facility, according to Valley.

Eric Greer, supervisor of mechanical engineering in Facilities Operations, is coordinating the gathering of samples. In the lab, Valley is assisted by Dr. Rachel Bleich, assistant professor of microbiology, and Dr. Michael Opata, assistant professor of immunology and infectious diseases, who has also directed an Honors College thesis.

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Appalachian State University’s Department of Biology is testing wastewater samples from the university’s residence halls as part of the university’s COVID-19 management strategy. Dr. Jenna Valley, lab supervisor for molecular and microbiology, left, and Dr. Rachel Bleich, assistant professor of microbiology, prepare wastewater samples for testing. Photo by Chase Reynolds

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Dr. Michael Opata, assistant professor of immunology and infectious diseases at Appalachian State University, assists with testing wastewater samples from campus residence halls. Each sample is filtered and the filter, which would contain any SARS-CoV-2 particles, is carefully folded and put into a tube for RNA extraction. Photo by Chase Reynolds

Karatan said the university is in the process of purchasing autosamplers. Currently, staff manually gather samples weekly. At each residence hall, they collect samples three times in a one-hour period. In contrast, the autosamplers will collect samples over a 24-hour period to provide a more representative sample.

Valley’s team heats the wastewater to inactivate any potential SARS-CoV-2 and then performs a test similar to the polymerase chain reaction (PCR) test conducted on nasal swabs.

Early detection through wastewater

“The advantage of using wastewater surveillance is that it allows us to survey a large number of students in an efficient and cost-effective manner,” Valley said.

Valley continued, “It also allows us to detect the presence of infected individuals in a residential population who may be asymptomatic and therefore less likely to seek testing.”

During the fall semester, samples from App State’s East Hall came back positive and since March 1, samples from five residence halls have also tested positive.

When results are positive for the presence of SARS-CoV-2, App State’s emergency response team is alerted and then focuses individualized testing efforts to that building.

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Dr. Jenna Valley, lab supervisor for molecular and microbiology in Appalachian State University’s Department of Biology, adds sample cDNA to a cartridge in preparation for droplet generation. This is part of the process for testing wastewater samples from campus residence halls — another component of the university’s COVID-19 management strategy. Photo by Chase Reynolds

Funding the project

Around the time App State began to explore residence hall wastewater testing in fall 2020, Karatan said the university was contacted by the director of the North Carolina Policy Collaboratory at UNC-Chapel Hill — an organization established by the state’s General Assembly to facilitate the dissemination of policy and research expertise within the UNC System and other institutions of higher learning across the state.

App State worked quickly to establish a wastewater testing program on campus in collaboration with a team at the UNC Institute of Marine Sciences, which has been leading a large effort with other UNC System institutions, the North Carolina Department of Health and Human Services and the North Carolina Department of Environmental Quality to use wastewater epidemiology to track the pandemic.

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Appalachian State University began testing wastewater from campus residence halls in fall 2020 as part of the university’s COVID-19 management strategy. Pictured, Dr. Jenna Valley, lab supervisor for molecular and microbiology in App State’s Department of Biology, places a wastewater sample in the droplet reader to analyze the droplets for target DNA using fluorescent probes. Photo by Chase Reynolds

According to Karatan, App State received a nearly $130,000 grant from the North Carolina Policy Collaboratory that made it possible for the university to begin testing in the fall and continue testing in the spring.

Karatan said, “The majority of the funding was for several pieces of equipment to perform a process called droplet digital PCR to detect the SARS-CoV-2. The remainder funded salaries for the individuals sampling and processing the wastewater and for supplies.”

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App State coronavirus information
App State coronavirus information

Find Appalachian State University’s latest updates, resources, prevention tips, travel information and more regarding Coronavirus Disease 2019 (COVID-19).

Learn more
680 Mountaineers and local community members receive COVID vaccine at App State’s 1st vaccine clinic
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Students return to App State’s residence halls for spring 2021
Students return to App State’s residence halls for spring 2021
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Students who live in Appalachian State University’s residence halls move back in for spring semester Jan. 28–31, with continued COVID-19 health and safety policies in place.

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Pandemic testing paramount at App State
Pandemic testing paramount at App State
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A total of 31,293 COVID-19 tests were administered by Appalachian State University during the fall 2020 semester — at no cost to students, faculty or staff.

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About the Office of Research and Innovation

Appalachian State University’s Office of Research and Innovation supports the scholarly and creative activities of App State faculty, staff and students by expanding access to and facilitating the management of research opportunities. The office consists of four units: Grants Resources and Services, Sponsored Programs, Research Design and Analysis, and Research Protections. The office also collaborates with the university’s Special Funds Accounting on the fiscal management of awarded projects. Learn more at https://research.appstate.edu.

About the Department of Biology

The Department of Biology is a community of teacher-scholars, with faculty representing the full breadth of biological specializations — from molecular genetics to landscape/ecosystem ecology. The department seeks to produce graduates with sound scientific knowledge, the skills to create new knowledge, and the excitement and appreciation of scientific discovery. Learn more at https://biology.appstate.edu.

About the College of Arts and Sciences

The College of Arts and Sciences (CAS) at Appalachian State University is home to 17 academic departments, two centers and one residential college. These units span the humanities and the social, mathematical and natural sciences. CAS aims to develop a distinctive identity built upon our university's strengths, traditions and locations. The college’s values lie not only in service to the university and local community, but through inspiring, training, educating and sustaining the development of its students as global citizens. More than 6,800 student majors are enrolled in the college. As the college is also largely responsible for implementing App State’s general education curriculum, it is heavily involved in the education of all students at the university, including those pursuing majors in other colleges. Learn more at https://cas.appstate.edu.

About Appalachian State University

As a premier public institution, Appalachian State University prepares students to lead purposeful lives. App State is one of 17 campuses in the University of North Carolina System, with a national reputation for innovative teaching and opening access to a high-quality, affordable education for all. The university enrolls more than 21,000 students, has a low student-to-faculty ratio and offers more than 150 undergraduate and 80 graduate majors at its Boone and Hickory campuses and through App State Online. Learn more at https://www.appstate.edu.

“The advantage of using wastewater surveillance is that it allows us to survey a large number of students in an efficient and cost-effective manner.”

Dr. Jenna Valley, lab supervisor for molecular and microbiology in App State’s Department of Biology, on residence hall wastewater testing at App State

App State coronavirus information
App State coronavirus information

Find Appalachian State University’s latest updates, resources, prevention tips, travel information and more regarding Coronavirus Disease 2019 (COVID-19).

Learn more

“It’s important that the university maintains a comprehensive testing strategy that includes residence hall wastewater testing. This allows us to detect cases earlier and help to reduce the spread of COVID-19.”

Jason Marshburn, App State’s director of environmental health, safety and emergency management

680 Mountaineers and local community members receive COVID vaccine at App State’s 1st vaccine clinic
680 Mountaineers and local community members receive COVID vaccine at App State’s 1st vaccine clinic
March 18, 2021

Appalachian State University hosted its first COVID-19 vaccine clinic March 11–12, with 680 doses of the vaccine administered to eligible staff, faculty, students and community members.

Read the story
Students return to App State’s residence halls for spring 2021
Students return to App State’s residence halls for spring 2021
Feb. 2, 2021

Students who live in Appalachian State University’s residence halls move back in for spring semester Jan. 28–31, with continued COVID-19 health and safety policies in place.

Read the story
Pandemic testing paramount at App State
Pandemic testing paramount at App State
Dec. 22, 2020

A total of 31,293 COVID-19 tests were administered by Appalachian State University during the fall 2020 semester — at no cost to students, faculty or staff.

Read the story

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Share your feedback on this story.

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Appalachian Today is an online publication of Appalachian State University. This website consolidates university news, feature stories, events, photo galleries, videos and podcasts.

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Appalachian Today is an online publication of Appalachian State University. This website consolidates university news, feature stories, events, photo galleries, videos and podcasts.

If you cannot find what you're looking for here, please refer to the following sources:

  • Podcasts may be found at Appalachian State University Podcasts
  • Stories and press releases published prior to Jan. 1, 2015 may be found in University Communications Records at the Special Collections Research Center.
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