If a majority of the voters, voting upon such question, shall vote in favor of the establishment of such commission, the county commissioners shall, within thirty days thereafter, appoint a mosquito extermination commission for such county, consisting of five members. The members first appointed shall hold office for terms of one, two, three, four, and five years, respectively, as specified in their certificates of appointment. Annually thereafter, the county commissioners shall appoint one member of such commission to serve for a term of five years. Vacancies in the membership of such commission shall be filled by the county commissioners for the unexpired term. The members of such commission shall serve without compensation. No person, employed by such commission, shall be a member thereof. The commission shall annually choose a chairman from among its members.

Where the question is whether or not an existing mosquito extermination commission shall be abolished, if a majority of the voters voting upon the question shall vote in favor of the abolishment thereof, the county commissioners shall, within thirty days thereafter, dismiss from further employment the members of the existing mosquito extermination commission and all the employes thereof.