COVID-19 _ icons

1st learn more about covid-19
2nd understand the hot topics
3rd sketch some references
4th draw first wave of icons
5th re_draw the same icons
6th adjust strokes and sizes
7th test in percentages 50% -> 100%
8th re_adjust some parts
9th test ( again ) if it is perceptible
10th done is done and is never finished...