yellow jack

• Nome antigo e coloquial da febre amarela, doença viral transmitida por mosquitos; historicamente também usado como apelido pejorativo para pessoa de ascendência mista asiática e europeia.

An outdated slang term for yellow fever, a viral disease transmitted by mosquitoes, or historically used as a derogatory nickname for a person of mixed Asian and European ancestry.

1. Yellow FeverC1formal

   A viral disease transmitted by mosquitoes, characterized by fever, jaundice, and bleeding.

   febre amarela

   • The outbreak of yellow jack in the region caused widespread panic.
   • Sailors were particularly vulnerable to yellow jack in tropical ports.
   • Vaccination is the most effective prevention against yellow jack.

2. Quarantine FlagC2formal

   A yellow flag flown by ships to indicate the presence of disease on board, historically used for quarantine.

   Bandeira de quarentena

   • The ship raised the yellow jack to signal a health emergency.
   • Port authorities refused entry to vessels flying the yellow jack.
   • The yellow jack was a common sight during the cholera epidemics.