BizWest—VitriVax, a Ïã¸ÛÁùºÏ²Ê spinout developing vaccine technology, has received a $5 million, two-year grant from the Bill & Melinda Gates Foundation. The grant will help the company further develop its proprietary single shot, thermostabilization vaccine technology and begin the development of pilot-scale manufacturing capacity, the company said in a press statement.