Fig. 2: National trends of pharmaceutical and viral data in wastewater (from ten WWTPs) alongside clinical sentinel testing data (January 2021 to June 2024). | Nature Water

Fig. 2: National trends of pharmaceutical and viral data in wastewater (from ten WWTPs) alongside clinical sentinel testing data (January 2021 to June 2024).

From: Insights into respiratory illness at the population level through parallel analysis of pharmaceutical and viral markers in wastewater

Fig. 2

a, The median pharmaceutical loads recorded every 13th day. b, The median viral gene copy loads based on the daily 7-day centred median values. c, The stacked testing cases from the general practitioner-based sentinel surveillance system. The ‘others’ category (shown in brown) encompasses tests for bocavirus, human coronaviruses (229E, HKU1, NL63 and OC43), metapneumovirus and parainfluenza viruses (types 1–4). The ‘negative’ category includes cases where individuals sought consultation for symptoms of acute respiratory infections or influenza-like illnesses but tested negative for the respiratory viruses under surveillance. The ‘unknown’ category includes samples with incomplete data on detected respiratory viruses.

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