Quarantine "yellow jack" but this was also a name for yellow fever, which probably derives its common name from the flag, not the color of the victims (cholera ships also used a yellow flag). The plain yellow flag ("Quebec" or Q in international maritime signal flags) probably derives its letter symbol for its initial use in "quarantine", but this flag in modern times indicates the opposite—a ship that declares itself free of quarantinable disease, and requests boarding and routine port inspection. Australia has perhaps the world's strictest quarantine standards. Quarantine in northern Australia is important because of its proximity to South-east
Flag of Acadiana the active participation of the Cajuns in the American Revolution, as soldiers under General Bernardo de Gálvez, Spanish governor of Louisiana). The flag can be seen in various uses in the Acadiana region. Some local governments fly the flag of Acadiana with their respective local colors and the American flag. Many residents of Acadiana fly the flag on their homes or businesses. To many, it is seen as a unifying image of the historic and present socioeconomic ties that bind the region. Lafayette also uses it as its city flag. Flag of Acadiana The flag of the ethnic Acadian (Cajun)