Figure 1

Persistence of SARS-CoV-2 on experimentally inoculated surfaces. Materials from eight experimental surfaces, including (A) stainless steel, (B) plastic, (C) nitrile gloves, (D) chemical gloves, (E) N95 mask, (F) N100 mask, (G) Tyvek, and (H) cotton were inoculated with 10 µl of SARS-CoV-2 (titre = 7.88 LogTCID₅₀/mL) in a tripartite soil load and sampled at predetermined intervals over a 21 day time-course. TCID₅₀ values (solid lines) represent mean ± SD of viable virus recovered from three biological replicates following end-point titration in Vero E6 cells. Genome equivalents (dashed black lines) are based on nucleoprotein-specific qRT-PCR results obtained from pooled eluates of three biological replicates at indicated sampling points. Red dashed lines indicate limits of quantification for the TCID₅₀ assay.