The current hype in a new vaccine against foot-and-mouth disease is all about how the new ones are safer. But are they? The clue is in what isn’t discussed: the adjuvants. PLoS reports that a UK government and Big Pharma funded study has found a new approach, using recombinant DNA technology, to create empty capsids, that is, empty virus protein shells, to use as antigens against foot-and-mouth disease. The hollow antigens would be grown inside insects.