https://duckduckgo.com/?q=artemisia+coronavirus
Looks very promising. Madagascar started using it in a big way last in April 2020.
That article says it’s something called Artemisia.
Check this quote and article out:
“WHO recognizes that traditional, complementary and alternative medicine has many benefits and Africa has a long history of traditional medicine and practitioners that play an important role in providing care to populations. Medicinal plants such as Artemisia annua are being considered as possible treatments for COVID-19 and should be tested for efficacy and adverse side effects. “
Apparently not “new news”, that was from last year, but was new to me. The herb plant is artemisia. Here is another article:
https://www.bbc.com/news/world-africa-53484298