Yes! Must have zinc. Hydroxychloroquine plus zinc sulfate. Some of their “studies” didn’t include zinc so no positive results. Hydroxychloroquine is the carrier. Zinc is the key.
Seems like some of the scientist are questioning (and rightly so) the methods and data of the no effect studies.
https://www.nytimes.com/2020/05/29/health/coronavirus-hydroxychloroquine.html