Fig. 4: CRs and viral load in Houston wastewater.
From: Crykey: Rapid identification of SARS-CoV-2 cryptic mutations in wastewater
In both panels a and b, the x-axis shows the dates from May 2021 to November 2022. Panel a shows the number of CRs (left y-axis) newly detected in Houston wastewater per week as bars. The proportion of CRs containing only non-synonymous mutations is indicated in orange, while the remainder is in gray. The width of the bar indicates the average breadth of genome coverage across all WWTP, ranging from 0.02 to 0.74. The normalized viral load in wastewater (right y-axis) (based on the viral load from samples collected on July 6, 2020 in Houston) is shown as a dotted line. Panel b shows the number of SARS-CoV-2 sequences in the GISAID EpiCoV database from Texas, USA per sampling week. Color corresponds to their PANGO lineage assignments. Omicron lineages other than BA.2, BA.5, and their descendants are combined and denoted as “Omicron”. Source data are available for this figure and are provided in the Source Data file.
