His research began with fruit flies, but over the last two decades, his focus has been on parasitic protozoa, single-celled organisms that cause major diseases.

VOA: standard.2010.04.05

"There is an element of truth in that,". "But the option to simply starve a large population of civilians because you have a parasitic insurgency group attached to them is not a choice.

VOA: standard.2009.04.26