Coronavirus in Thessaloniki: increase in the viral load of wastewater


An increasing trend in the concentration of SARS-CoV-2 viral load in urban wastewater is observed in Thessaloniki.

The last measurements were carried out by a group of epidemiologists ΑΠΘ together with ΕΥΑΘ in cooperation with the regional authorities of Central Macedonia and within the framework of the National Network ΕΟΔΥ. The weekly average viral load in Thessaloniki increased by 26%, despite the fact that in previous days there was a stable situation. In particular, in samples taken daily from the wastewater treatment plant in Thessaloniki, the average of the two most recent measurements, i.e. on Tuesday 25 October 2022 and Wednesday 26 October of the current year, is recorded as:

  • Stable (+10%) compared to the average of the two immediately preceding measurements on Sunday 10/23/2022 and on Monday 10/24/2022.
  • Significantly increased by 58% compared to the average for the previous Tuesday 10/18/2022 and Wednesday 10/19/2022.

The charts were provided to the Athens Macedonian News Agency by the ΑΠΘ College of Epidemiologists. The ΑΠΘ team’s methodology for assessing the content of coronavirus in urban waste rationalizes measurements of the concentration of the virus genome based on 24 environmental factors.



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