Likely the result of zinc deprivation. MANY of the trials were intentionally sandbagged by lack of the zinc supplementation, and by delaying treatment.
Prayers to Dr. Zelensky for a successful surgery and speedy recovery!
Many of the studies were crapola. As you said, many of them were studied on people who were already so sick they were admitted to the ICU. Or they didn’t get the complete regimen. Another study mixed CQ and HCQ arms together. The VA study was a retrospective study of Covid positive patients who passed away; but without any real controls or data on the subjects or why they were in the hospital to begin with or whether they caught covid in the hospital. And because Trump attacked and withdrew funds to the WHO, the WHO retaliated by cancelling its trials. NONE OF THIS IS SCIENCE! It is politics.
IANAD, but imo Dr. Zelensky and others showed that it should be given as early as possible after diagnoses for those at risk or onset of first symptoms if they don’t have underlying conditions... just like any disease the sooner you treat it the greater the likelihood of a positive outcome.
See my Comment 40 where the links’ comments deal in great detail with the deliberate lack of interest in zinc. Also my Comment 42 where my PC eliminated the information from line 2 that Dr. Z was the source of the Quercetin doses I listed.