COVID-19 Outbreak (Update: More than 2.9M cases and 132,313 deaths in US)

Has YouTube said why they took it down? I mean, they are a private company so as far as I'm concerned they can take down whatever they want but I'm curious if they have given a reason. Is it because they think it's an Ad? Some rule against certain content?
From an interview with YouTube CEO Susan Wojcicki : "Of course, anything that is medically unsubstantiated - so people saying like 'take vitamin C, take turmeric, we’ll cure you' - those are examples of things that would be a violation of our policy. Anything that would go against World Health Organization recommendations would be a violation of our policy."