Ascending trends were observed in relation to the week 14 to 20 March 2022, at the average weekly viral load of SARS-CoV-2 in urban wastewater in eight of the thirteen (8/13) areas controlled by the National Wastewater Epidemiology Network (EDEL) of ΕΟΔΥ.
The largest increase was observed in Heraklion where the viral load reached + 291%. Explosion of the viral charge was also detected in Saint Nicholas with the viral load increasing by 233%.
Increases were also observed in the Region Attica (+ 41%) but also in Thessaloniki (+ 29%).
The announcement in detail
The results of the laboratory tests of the National Network of Sewage Epidemiology for the epidemiological surveillance of the SARS-CoV-2 virus in urban wastewater, which operates under the coordination of EODY, are announced.
The samples come from the Attica Region and the cities of Thessaloniki, Larissa, Volos, Heraklion, Chania, Rethymnon, Agios Nikolaos Lassithi, Patras, Xanthi, Alexandroupolis, Ioannina and Corfu.
The samples are taken from the entrances of the local Wastewater Treatment Plants (WWUs) and correspond to the population served by them. Panel
Conclusions: During the week 21 to 27 March 2022, there were increasing trends, compared to the week 14 to 20 March 2022, in the average weekly viral load of SARS-CoV-2 in urban wastewater in eight of the thirteen (8/13) areas were controlled by the National Network of Sewage Epidemiology (EDEL) of EODY, downward trends in four of the thirteen (4/13) areas of EDEL and stabilizing trends in one of the thirteen (1/13) areas controlled by EDEL.
Clearly increasing trends were observed in the Attica Region (+ 41%), Ioannina (+ 108%), Agios Nikolaos (+ 233%) and Heraklion (+ 291%). The increase was marginal in Patras (+ 20%), Rethymno (+ 13%), Chania (+ 29%) and Thessaloniki (+ 29%). Clearly declining trends were observed in Alexandroupolis (-36%) and Xanthi (-31%), while the decrease was marginal in Larissa (-11%) and Volos (-10%). The viral load of urban wastewater remained virtually stable in Corfu (-5%).
Attica Region: In the last week, 21-27 / 03/22, the average weekly viral load in the urban wastewater of the Attica Region showed an increasing trend, with a statistically significant increase (+ 41%) of the weekly average compared to the previous week, 14-20 / 03/22. The upward trend started on Sunday 06/03/22 and the biggest increase occurred in the fourth week of March, which is largely due to the spread of Omicron BA.2.
Thessaloniki: In the last week, 21-27 / 03/22, the weekly average value of the viral load of urban wastewater in Thessaloniki showed a marginal increase (+ 29%) compared to the previous 14-20 / 03/22. It should be noted that the weekly average price of viral load in the last month has tripled, with the result that the viral load in the city of Thessaloniki is at very high levels.
Larissa: In the last week, 21-27 / 03/22, there was a marginal decrease (-11%) in the weekly average value of the viral load of urban wastewater in Larissa compared to the week 14-20 / 03/22.
Volos: In the last week, 21-27 / 03/22, there was a marginal decrease (-10%) in the weekly average value of the viral load of urban wastewater, compared to the week 14-20 / 03/22. 9
Xanthi: In the last week 21-27 / 03/22, there was a decline (-31%) in the weekly average value of the viral load of urban wastewater in Xanthi in relation to the week 14-20 / 03/22.
Alexandroupolis: In the last week 21-27 / 03/22, there was a decline (-36%) in the weekly average value of the viral load of urban wastewater in Alexandroupolis, compared to the week 14-20 / 03/22.
Patras: In the last week, 21-27 / 03/22, in Patras, the weekly average value of the viral load of urban wastewater showed a marginal increase (+ 20%) compared to the previous week 14-20 / 3/22. The weekly mean value of the viral load shows a steadily increasing trend
Heraklion: In the last week, 21-27 / 03/22, in the city of Heraklion, the weekly average value of the viral load of urban wastewater showed an increase (+ 291%) compared to the previous week, 14-20 / 03/22 .
Chania: In the last week, 21-27 / 03/22, in the city of Chania, the weekly average value of the viral load of urban wastewater showed a marginal increase (+ 29%) compared to the previous week, 14-20 / 03 / 22. Rethymno: In the last week, 21-27 / 03/22, in the city of Rethymno, there was a marginal increase (+ 13%) in the average weekly viral load of SARS-CoV-2 in urban wastewater, compared to the previous week, 14 -20/03/22.
Agios Nikolaos: In the last week, 21-27 / 03/22, in the city of Agios Nikolaos, the weekly average value of the viral load of urban wastewater showed an increase (+ 233%) compared to the last week, 14-20 / 03 / 22.
Ioannina: In the last week, 21-27 / 03/22, in Ioannina, the weekly average value of the viral load of urban wastewater showed an increase (+ 108%) compared to the previous week, 14-20 / 03/22.
Corfu: In the city of Corfu in the last week, 21-27 / 03/22, the average weekly viral load in the sewage remained stable (-5%) compared to the previous week, 14-20 / 03/22.
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