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 Malta Flag of Malta The flag of Malta () is a basic bi-colour, with white in the hoist and red in the fly. A representation of the George Cross, awarded to Malta by George VI of the United Kingdom in 1942, is carried, edged with red, in the canton of the white stripe. The red hue in the Maltese flag is officially documented as Pantone©186c, R207 G20 B43 (# CF142B) or Spot Colour - 50% rubine red • 50% warm red. Tradition states that the colours of the flag were given to Malta by Roger I of Sicily in 1090. Roger's