Concern in Crete from the significant increase of the viral load in the Sewage of Rethymno, Heraklion and other areas of the islands as reflected in the new data of EODY.
In the last week, 06-12 / 12/21, in the city of Rethymno, the average viral load of sewage showed a significant increase (+ 258%) compared to the week 29 / 11-05 / 12/21. Viral load levels remain high.
At the same time, in the city of Heraklion, the weekly average value of the viral load of urban wastewater showed an increase (+ 109%) compared to the previous week, 29 / 11-05 / 12/21. Viral load levels also remain high.
In the last week, 06-12 / 12/21, in the city of Chania, the weekly average value of the viral load of urban wastewater showed an increase (+ 84%) compared to the previous week, 29 / 11-05 / 12/21 . The viral load remains high.
During the week 6 to 12 December 2021, there were downward trends, compared to the week 29 November to 5 December 2021, in the average weekly viral load of SARS-CoV-2 in the urban wastewater of six of the thirteen (6/13) areas were controlled by the National Network of Sewage Epidemiology (EDEL) of EODY, increasing trends in five of the thirteen (5/13) areas of EDEL and stabilizing trends in two of the thirteen (2/13) areas of EDEL. Net reduction of viral load in urban wastewater was observed in Xanthi (-33%), Larissa (-36%), Alexandroupolis (-45%) and Patras (-69%), while the reduction was observed in Volos. (-21%) and in Thessaloniki (-22%). Clearly increasing trends were observed in the four cities of Crete controlled by EDEL. Specifically, the viral load of urban wastewater showed a net increase in Agios Nikolaos (+ 45%), Chania (+ 84%), Heraklion (+ 109%) and Rethymnon (+ 258%). Marginal was the increase observed in the viral load of urban wastewater in Ioannina (+ 25%). The viral load of urban wastewater in Corfu (-2%) and Attica (-3%) remained virtually stable
Finally in the last week, 06-12 / 12/21, with the levels of viral load remaining high, in the city of Agios Nikolaos, the weekly average value of viral load of urban wastewater showed a marginal increase (+ 45%) compared to last week, 29 / 11-05 / 12/21.
In the last week, 06-12 / 12/21, the average weekly viral load in the urban wastewater of the Attica Region showed a stabilizing trend, with a statistically insignificant change (-3%) of the weekly average compared to the previous week, 29 / 11-05 / 12/21. The upward trend in the viral load of its wastewater
Attica Region started in mid-September 2021 and since then the viral load has gradually increased.
The largest increase was observed in the last two weeks of October and the first week of November, while in the remaining weeks of November and the first two of December the viral load of urban wastewater in the Attica Region showed stabilizing and then slightly declining trends.
In Thessaloniki, the weekly average value of the viral load of urban wastewater during the week, 06-12 / 12/21, showed a marginal decrease (-22%) compared to the previous week, 29 / 11-05 / 12/21.
The average weekly value of the viral load has decreased overall -37% in the last two weeks. Nevertheless, the viral load of urban wastewater in the city of Thessaloniki is still at very high levels
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 operate under the coordination of EODY.
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.
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