Sucks to be the South African government: too poor to vaccinate efficiently, shares data with rest of the world in "excellent" meetings, gets immediately quarantined via airline bans. And then we wonder why countries tend to be secretive...
Note I'm not saying we shouldn't trigger transfer bans (we should), but there should be a compensation mechanism that goes with them - like money or free vaccines. Otherwise poor countries have no incentive to cooperate.
South Africa's big problem with vaccination right now seems to be that they're running out of willing people to vaccinate - they just postponed a bunch of vaccine deliveries because their current stockpile is big enough already, and apparently a lot of people there are reluctant to get the vaccine.
Note I'm not saying we shouldn't trigger transfer bans (we should), but there should be a compensation mechanism that goes with them - like money or free vaccines. Otherwise poor countries have no incentive to cooperate.