Mass. Gen. Laws ch. 111 § 109
A householder who knows or has cause to believe that a person in his family or house is infected with a disease dangerous to the public health shall forthwith give notice thereof to the board of health of the town where such householder dwells, unless a physician is in attendance. Upon the death, recovery or removal of such person, the householder shall disinfect to the satisfaction of the board such rooms of his house and articles therein as, in the opinion of the board, have been exposed to infection or contagion, but the board may in its discretion, disinfect all such premises as, in its opinion, have been exposed to any disease dangerous to the public health, at the expense of the town, and may employ any proper and competent person to so disinfect. Whoever violates any provision of this section shall be punished by a fine of not more than one hundred dollars.
Mass. Gen. Laws ch. 111, § 109