{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T23:49:49Z","timestamp":1788824989611,"version":"build-2803163510"},"reference-count":46,"publisher":"American Society for Microbiology","issue":"11","license":[{"start":{"date-parts":[[2024,11,21]],"date-time":"2024-11-21T00:00:00Z","timestamp":1732147200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,11,21]],"date-time":"2024-11-21T00:00:00Z","timestamp":1732147200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"name":"Sergey Brin Family Foundation","award":["NA"],"award-info":[{"award-number":["NA"]}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["mSphere"],"published-print":{"date-parts":[[2024,11,21]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:sec>\n            <jats:title\/>\n            <jats:p>\n              Wastewater-based epidemiology, which seeks to assess disease occurrence in communities through measurements of infectious disease biomarkers in wastewater, may represent a valuable tool for understanding the occurrence of hepatitis A infections in communities. In this study, we measured concentrations of\n              <jats:italic>Hepatovirus A<\/jats:italic>\n              (HAV) RNA, in samples from 191 wastewater treatment plants spanning 40 US states and the District of Columbia from September 2023 to June 2024 and compared the measurements with traditional measures of disease occurrence. Nationally, 13.76% of the 21,079 wastewater samples were positive for HAV RNA, and both concentrations and positivity rates were associated with NNDSS hepatitis A case data nationally (Kendall rank correlation coefficient = 0.20, concentrations; and 0.33, positivity rate; both\n              <jats:italic>P<\/jats:italic>\n              &lt; 0.05). We further demonstrated that higher rates of wastewater HAV detection were positively associated with socioeconomic indicators of vulnerability including homelessness and drug overdose deaths (both\n              <jats:italic>P<\/jats:italic>\n              &lt; 0.0001). Areas with above average levels of homelessness were 48% more likely to have HAV wastewater detections, while areas with above average levels of drug overdose deaths were 14% more likely to have HAV wastewater detections. Using more granular case data, we present a case study in the state of Maine that reinforces these results and suggests a potential lead time for wastewater over clinical case detection and exposure events. The ability to detect HAV RNA in wastewater before clinical cases emerge could allow public health officials to implement targeted interventions like vaccination campaigns.\n            <\/jats:p>\n            <jats:sec>\n              <jats:title>IMPORTANCE<\/jats:title>\n              <jats:p>Despite the existence of a highly effective vaccine for hepatitis A, outbreaks in vulnerable populations remain common. The disease can be asymptomatic or subclinical, and disproportionately impacts populations with inadequate access to healthcare, leading to a severe underestimation of the occurrence of this viral infection. This study investigates the potential for wastewater measurements of biomarkers of the causative agent of hepatitis A (HAV RNA) to provide insights into disease occurrence. Results highlight the potential for wastewater-based epidemiology to be a complementary tool to traditional surveillance for monitoring and controlling HAV transmission.<\/jats:p>\n            <\/jats:sec>\n          <\/jats:sec>","DOI":"10.1128\/msphere.00645-24","type":"journal-article","created":{"date-parts":[[2024,10,30]],"date-time":"2024-10-30T15:21:28Z","timestamp":1730301688000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":11,"title":["Detection of\n            <i>Hepatovirus A<\/i>\n            (HAV) in wastewater indicates widespread national distribution and association with socioeconomic indicators of vulnerability"],"prefix":"10.1128","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3636-0211","authenticated-orcid":false,"given":"Alessandro","family":"Zulli","sequence":"first","affiliation":[{"name":"Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elana M. G.","family":"Chan","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8162-5090","authenticated-orcid":true,"given":"Alexandria B.","family":"Boehm","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.mm6743a3"},{"key":"e_1_3_3_3_2","unstructured":"CDC. 2024. Hepatitis infection among people who use or Inject drugs. Available from: https:\/\/www.cdc.gov\/hepatitis\/populations\/idu.htm. Retrieved 23 Mar 2024."},{"key":"e_1_3_3_4_2","unstructured":"CDC. 2024. Hepatitis A outbreaks in the United States. 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