Hmm, obviously 0 would be great, but no vaccine is 100%, and considering we've never used mRNA vaccines before, it's pretty amazing they are having the efficacy they do. A year ago, there was hope of maybe developing something that was 50% effective. Are these people showing symptoms or are they asymptomatic? Has anyone been hospitalized?

The numbers keep changing here, but the last I read about 37% of the hospitalized were fully vaccinated here. Right now they are using about 85% Sinovac. It was higher earlier, so I am betting 90% of fully vaccinated people had Sinovac and they are still ending up in the hospital more than you would hope. People are dying with 2 doses of Sinovac. We are constantly told that the vaccine at least keeps keep you from dying and out of the hospital. Of course, what the government does not say is what % of the hospitalized got Pfizer and how many got Sinovac.

Today they reported 8,273 new cases. 20% of those were fully vaccinated, that means 1,655 people tested positive when fully vaccinated. In perspective, the 0.05% you cite doesn't look bad at all.