Section 7. And be it further enacted by the authority aforesaid, That any person or persons, and all goods, merchandize, bedding and clothing, arriving at any port or place within the United States, from any foreign port or place, at which any malignant or contagious disease (the small pox and measels excepted) prevailed at the time of their departure, or in any vessel in which any such disease existed while they were on board, the same are hereby prohibited from entering the city or county of Philadelphia, or the county of Delaware, except the township of Tinicum, at any time between the first day of June and the first day of October in any year, either by land or water, without permission of the board of health first had and obtained, under the penalty of five hundred dollars for each and every offence, and the forfeiture of all such goods, merchandize, bedding or clothing, to be recovered and appropriated as is hereinafter directed; and that all goods, wares, bedding, clothing and merchandize, seamen or passengers, landed from on board any ship or vessel belonging to the port of Philadelphia, at any other port of the United States, shall be subject to perform twenty days quarantine, previously to entering the city or county of Philadelphia, under the same penalty as in the fifth section, without permission first obtained from the board of health.