Live vaccine is used in high-Polio regions because it is more effective (though with more risk). Once the incidence of Polio has fallen suffciently through sufficient vaccine coverage, the campaign can move to the less effective but safer deactivated vaccine. This is the path that western countries have followed because they are further along the eradication path than poorer countries.

TFA calls it a "diversity problem" but who is suffering? White men who have to pay more for worthless pixel art that doesn't look like them anyway? Early adopters whose prices were even lower? Artists who don't know how to change the color palette? If you beleive the hype then darker skinned people have a real "opportunity" to pick up characters cheaply, perhaps they are the lucky ones? If this tulip market is going to last, artists will read this article and oversupply pale characters. Then will we hear that black people are being overcharged? Bloomberg is stirring the race pot for clicks. They should be above that.