Smyrna, Ga.-based GeoVax Labs Inc., a clinical-stage biotechnology company, appointed David Dodd as president and CEO, effective Sept. 1.

Dodd succeeds Robert McNally, who has retired but will remain a director of the company.

Dodd became a board member of the company in March 2010 and was elected chairman in January 2011. He served as CEO and director of Medizone International Inc., a medical device manufacturer, from September 2017 to June 2018.