Complex sentence: He and his company worked at the epicenter of SARS in Taipei for the duration of the SARS epidemic before moving PRB Pharmaceuticals' operations to Hong Kong to work on emerging viral disease.
Split into simpler sentences: He and his company worked at the epicenter of SARS in Taipei for the duration of the SARS epidemic. Hensley then moved PRB Pharmaceuticals' operations to Hong Kong to work on emerging viral disease.