53 Pa. Stat. § 14401
All departments of health of the cities of the first class of this commonwealth shall have full power, and shall make, immediately after this act shall become a law, such rules and regulations, which in their judgment may be proper and necessary, for the protection of the public health, and amend or alter the same, from the diseases known as cholera, yellow, malarial, typhoid, typhus, scarlet, puerperal and relapsing fevers, small-pox (variola or varioloid), chicken-pox (varicella), diphtheria, diphtheritic and membraneous croups, cerebro-spinal meningitis, measles, mumps, whooping-cough, tuberculosis (in any of its diverse forms), pneumonia, erysipelas, plague (Bubonic), trachoma, leprosy, tetanus, glanders, hydrophobia (rabies) and anthrax.
53 P.S. § 14401