Each member of the commission shall, before entering upon the discharge of his duties under this chapter, take and subscribe the oath of office required by Article II, Section 7 of the Constitution of Virginia, and give bond payable to the Commonwealth of Virginia in form approved by the Attorney General, in such penalty as shall be fixed from time to time by the State Health Commissioner, with some surety or guaranty company duly authorized to do business in Virginia and approved by the State Health Commissioner, as security, conditioned upon the faithful discharge of his duties. The premium of such bonds shall be paid by the commission and the bonds shall be filed with and preserved by the Comptroller.