Artemisia annua is probably one of the most efficacious plants in the treatment of malaria according to scientific consensus. It is also interesting to see that there might just be a potential to ameliorate some of the symptoms due to covid-19 infections. I wrote a little piece here for my entry:
https://peakd.com/hive-141827/@gentleshaid/artemisia-annua-the-covid-19-saviour-the-world-never-had