A contagious disease is a subset category of transmissible diseases, which are transmitted to other persons, either by physical contact with the person suffering the disease, or by casual contact with their secretions or objects touched by them or airborne route among other routes.
International maritime signal flags refers to various flags used to communicate with ships.
The "Offshore Off-Licence" is the name coined by the media to describe a 2004 venture to bring "tax- and duty-free" alcohol and cigarettes to Teesside, England.
A quarantine is used to separate and restrict the movement of people; it is a 'a restraint upon the activities or communication of persons or the transport of goods designed to prevent the spread of disease or pests', for a certain period of time.
In International maritime signal flags, 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.