> formites and surface contamination of any kind don't seem to be a major source of transmission
When there are millions of infected people walking around breathing and coughing, then fomite transmission is not a major source of transmission. But it is a source of transmission, and it could become the dominant source of new introductions of the virus into the country if quarantine of travelers is good enough (to go to China, you generally have to get a negative PCR test before your flight, then quarantine for two weeks in a special hotel on arrival, and finally get another negative PCR test). That's not to say that cold chain was actually the source of the Beijing or the Qingdao outbreaks, but there's evidence that points in that direction. In other words, this isn't simply propaganda.
But the larger issue that we were originally discussing is the overall situation in China. There clearly has not been significant community transmission over the past year, showing that the strategy (sharp lockdowns followed by strict border quarantines and mass testing during localized outbreaks) has been effective.
When there are millions of infected people walking around breathing and coughing, then fomite transmission is not a major source of transmission. But it is a source of transmission, and it could become the dominant source of new introductions of the virus into the country if quarantine of travelers is good enough (to go to China, you generally have to get a negative PCR test before your flight, then quarantine for two weeks in a special hotel on arrival, and finally get another negative PCR test). That's not to say that cold chain was actually the source of the Beijing or the Qingdao outbreaks, but there's evidence that points in that direction. In other words, this isn't simply propaganda.
But the larger issue that we were originally discussing is the overall situation in China. There clearly has not been significant community transmission over the past year, showing that the strategy (sharp lockdowns followed by strict border quarantines and mass testing during localized outbreaks) has been effective.