Quarantine with a disinfecting stove, have a right to navigate the Canal, in quarantine, subject only to the landing of those who were suffering from plague. Plain yellow, green, and even black flags have been used to symbolize disease in both ships and ports, with the color yellow having a longer historical precedent, as a color of marking for houses of infection, previous to its use as a maritime marking color for disease. The present flag used for the purpose is the "Lima" (L) flag, which is a mixture of yellow and black flags previously used. It is sometimes called the
Quarantine Act 1721 some further provisions are necessary to be made, in case it should please Almighty God to permit these kingdoms to be afflicted with the plague; for remedy thereof; be it enacted. which is right In simpler terms, this act made it mandatory for all ships and crew to undergo a complete quarantine of the ship’s cargo and crew to determine whether there was a threat to public health. If the ship was infected by a disease and the captain or any of the crew members knew and hid the information, they were subject to capital punishment. If a crew member