Complex sentence: In less than 10 years the transformation lead by director general Jussi Huttunen was complete, and the Institute had few routine tasks, and served the government as an expert organisation, as well as did internationally relevant research related to public health.
Split into simpler sentences: In less than 10 years the transformation lead by director general Jussi Huttunen was complete, and the Institute had few routine tasks. It served the government as an expert organisation, performing internationally relevant research related to public health.