At the risk of reopening a tangential can of worms, I'm unaware of any serious or widespread side effects associated or even alleged of small amounts of sugar, which makes it a lot more appealing vaccine preservative (to me) than things like formaldehyde and antifreeze. And given the near epidemic rate of hospital infection, in an environment so rich in antibiotics that many bacteria are immune to them, anything that offers a significant reduction is also very appealing. Similarly anything that makes windpower more efficient or solar panels cheaper and cleaner is good for all of us. Good thing industrialization and population growth hasn't driven these species to extinction, eh?