Simultaneous biomass concentration and subsequent quantitation of multiple infectious disease agents and antimicrobial resistance genes from community wastewater

被引：0

作者：

Sarekoski, Anniina ^{[1
,2
]}

Lipponen, Anssi ^{[1
,6
]}

Hokajarvi, Anna-Maria ^{[1
]}

Raisanen, Kati ^{[3
]}

Tiwari, Ananda ^{[1
]}

Paspaliari, Dafni ^{[3
]}

Lehto, Kirsi-Maarit ^{[4
]}

Oikarinen, Sami ^{[4
]}

Heikinheimo, Annamari ^{[2
,5
]}

Pitkanen, Tarja ^{[1
,2
]}

机构：

[1] Finnish Inst Hlth & Welf, Expert Microbiol Unit, Neulaniementie 4, FI-70701 Kuopio, Finland

[2] Univ Helsinki, Fac Vet Med, Dept Food Hyg & Environm Hlth, Agnes Sjobergin katu 2, FI-00014 Helsinki, Finland

[3] Finnish Inst Hlth & Welf, Expert Microbiol Unit, Mannerheimintie 166, FI-00271 Helsinki, Finland

[4] Tampere Univ, Fac Med & Hlth Technol, Arvo Ylpon katu 34, FI-33520 Tampere, Finland

[5] Finnish Food Author, Alvar Aallon katu 5, FI-60100 Seinajoki, Finland

[6] Univ Eastern Finland, Fac Hlth Sci, Yliopistonranta 8, FI-70210 Kuopio, Finland

来源：

ENVIRONMENT INTERNATIONAL | 2024年 / 191卷

基金：

芬兰科学院;

关键词：

Wastewater; Surveillance; Public health; Multiple pathogens; Antimicrobial resistance; PCR; CRYPTOSPORIDIUM; SURVEILLANCE; SAPOVIRUSES; INFORMATION; PREVALENCE; BACTERIA; GIARDIA; RNA;

D O I：

10.1016/j.envint.2024.108973

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Wastewater-based surveillance (WBS) of infectious disease agents is increasingly seen as a reliable source of population health data. To date, wastewater-based surveillance efforts have largely focused on individual pathogens. However, given that wastewater contains a broad range of pathogens circulating in the population, a more comprehensive approach could enhance its usability. We focused on the simultaneous detection of SARS-CoV-2, sapovirus, Campylobacter jejuni, Campylobacter coli, Salmonella spp., pathogenic Escherichia coli, Cryptosporidium spp., Giardia spp. and antimicrobial resistance genes (ARGs) of clinical relevance. To achieve this goal, biomass concentration and nucleic acid extraction methods were optimized, and samples were analyzed by using a set of (RT)-qPCR and (HT)-qPCR methods. We determined the prevalence and the spatial and temporal trends of the targeted pathogens and collected novel information on ARGs in Finnish wastewater. In addition, the use of different wastewater concentrates, namely the ultrafiltered concentrate of the supernatant and the centrifuged pellet, and the effect of freezing and thawing wastewater prior to sample processing were investigated with the indicator microbe crAssphage. Freeze-thawing of wastewater decreased the gene copy count of crAssphage in comparison to analyzing fresh samples (p < 0.001). Campylobacters were most abundant in two of the four studied summer months (30 % detection rate) and in wastewaters from regions with intensive animal farming. Salmonella, however, was detected in 40 % of the samples without any clear seasonal trends, and the highest gene copy numbers were recorded from the largest wastewater treatment plants. Beta-lactamase resistance genes that have commonly been detected in bacteria isolated from humans in Finland, namely bla(CTX-M), bla(OXA48), bla(NDM), and bla(KPC), were also frequently detected in wastewaters (100, 98, 98, and 70 % detection rates, respectively). These results confirm the reliability of using wastewater in public health surveillance and demonstrate the possibility to simultaneously perform WBS of multiple pathogens.

引用

页数：15