What caught my eye in December:
https://www.taiwannews.com.tw/en/news/4072441

So I'm curious about the real efficacy rates of all vaccines. Remains to be seen as by when real data will be available.
China "methods" didn't surprise me though, it's the article by Peter Doshi that reminded me of who we are dealing with.

Edit:
That's exactly my point:
Brazil finds China's Sinovac vaccine only 50% effective
https://www.taiwannews.com.tw/en/news/4101158