"They are heat-sensitive and open to risk of microbial contamination, so issues of shelf life and handling are always front and center," Antman said. "This means they're probably going to be more expensive than pills."
But Antman believes, as the saying goes, an ounce of prevention is worth a pound of cure.
"How much is it worth to use a more expensive treatment up front to avoid downstream events that are more expensive?" he asked. "If you think prevention is expensive, try treating disease."