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. 2022 Apr 30;836:155599. doi: 10.1016/j.scitotenv.2022.155599

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Fig. 3 — SARS-CoV-2 Delta variant of concern and Omicron variant of concern dynamics. a, RT-qPCR detection of SARS-CoV-2 in the city of Beer-Sheva's wastewater during late November 2021 until late January 2022. Overall SARS-CoV-2 variants detected by N gene sets (gray area), Delta variant of concern detected by SΔ157 set (teal columns) and Omicron variant of concern detected by Ins214 S set (orange columns). Reported population's morbidity was extracted from the Ministry of Health database (black dashed line). b, Simulation results for Omicron (orange line), Delta (teal line), and total number (gray line) of detected actively infected people in the city of Beer-Sheva according to a moderately asymmetric cross-immunity, q_DO = q_OD/4 (see SI for the choice of parameters). Black dots represent confirmed active infections obtained from the Ministry of Health dashboard (irrespective of variants) up to January 25th, 2022. Time t = 0 corresponds to the date December 15th, 2021.