Emergency department  indoor-air hybrid-capture metagenomics complements wastewater by adding a human-focused respiratory virus perspective
We conducted a matched-pair study comparing 19 weekly indoor air samples from an emergency department waiting room indoor air ventilation system and 19 24-hour composite municipal wastewater samples in Leuven, Belgium, from December 2024 to April 2025. Both sample sets were processed using probe-based hybrid-capture viral metagenomics protocol.