How is the data being displayed? The kind of chart you’re looking at also matters. Peaks are even harder to see if charts use a logarithmic scale, which many COVID-19 visualizations do.

Letter Published: 27 May 1939 Rapid Graphical Analysis of Circuit Performance by the Use of Logarithmic Charts D. N. TRUSCOTT Nature 143, 897–898 (1939) Cite this article ...