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First detection of SARS-CoV-2 genetic material in the vicinity of COVID-19 isolation Centre in Bangladesh: Variation along the sewer network

We made the first and successful attempt to detect SARS-CoV-2 genetic material in the vicinity wastewaters of an isolation centre i.e. Shaheed Bhulu Stadium, situated at Noakhali, Southeastern Bangladesh. Owing to the fact that isolation centre, in general, always contained a constant number of 200...

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Published in:The Science of the total environment 2021-07, Vol.776, p.145724-145724, Article 145724
Main Authors: Ahmed, Firoz, Islam, Md. Aminul, Kumar, Manish, Hossain, Maqsud, Bhattacharya, Prosun, Islam, Md. Tahmidul, Hossen, Foysal, Hossain, Md. Shahadat, Islam, Md. Sydul, Uddin, Md. Main, Islam, Md. Nur, Bahadur, Newaz Mohammed, Didar-ul-Alam, Md, Reza, Hasan Mahmud, Jakariya, Md
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Language:English
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Summary:We made the first and successful attempt to detect SARS-CoV-2 genetic material in the vicinity wastewaters of an isolation centre i.e. Shaheed Bhulu Stadium, situated at Noakhali, Southeastern Bangladesh. Owing to the fact that isolation centre, in general, always contained a constant number of 200 COVID-19 patients, the prime objective of the study was to check if several drains carrying RNA of coronavirus are actually getting diluted or accumulated along with the sewage network. Our finding suggested that while the temporal variation of the genetic load decreased in small drains over the span of 50 days, the main sewer exhibited accumulation of SARS-CoV-2 RNA. Other interesting finding displays that probably distance of sampling location in meters is not likely to have a significant impact on the detected gene concentration, although the quantity of the RNA extracted in the downstream of the drain was higher. These findings are of immense value from the perspective of wastewater surveillance of COVID-19, as they largely imply that we do not need to monitor every wastewater system, and probably major drains monitoring may illustrate the city health. Perhaps, we are reporting the accumulation of SARS-CoV-2 genetic material along with the sewer network i.e. from primary to tertiary drains. The study sought further data collection in this line to simulate conditions prevailed in most of the developing countries and to shed further light on decay/accumulation processes of the genetic load of the SARS-COV-2. [Display omitted] •First detection report of SARS-CoV-2 RNA in the wastewaters of Bangladesh•Probably first report on wastewater surveillance in the vicinity of COVID-19 isolation center•Secondary/tertiary drains of sewer network exhibited RNA accumulation of SARS-CoV-2•Distance in few meters from the excretion point has no significant influence on Ct-value.
ISSN:0048-9697
1879-1026
1879-1026
DOI:10.1016/j.scitotenv.2021.145724