Antiviral therapies pharmaceutical company Chimerix has raised $45 million that it will apply toward further clinical development of two compounds, one of which could be used as a defense against biological attacks. The Durham, North Carolina-based company is developing another compound for infections associated with HIV.

OrbiMed Advisors, which has invested in Ohio companies Athersys Inc. and ViewRay, has raised $550 million for its latest health venture capital fund.