「Mouth, orifice」beside a「person quarantined and wrapped with array of poultice netting」due to a serious case of sexually transmitted infection may cause an onlooker to GAG, CHOKE, VOMIT, LAUGH HEARTILY, especially if the sick client insists upon receiving some sort of service to be provided using his privies.
　「Mouth of a person very ill, kept in isolation」sufficiently describes VOMITING, CHOKING. Meaning of LAUGH HEARTILY may be someone unable to move,「not at liberty」due to convulsing with laughter.
　Nevertheless: all early human societies were cannibalistic, and one malady associated with ingesting the brains of「captured humans on serving dish」is kuru, also known as the LAUGHING sickness:
　「Kuru is an incurable degenerative neurological disorder that is a type of transmissible spongiform encephalopathy, caused by a prion found in humans. The term 'kuru' derives from the Fore word 'kuria/guria' ('to shake'), a reference to the body tremors that are a classic symptom of the disease. It is also known among the Fore as the laughing sickness due to the pathologic bursts of laughter people would display when afflicted with the disease. It is now widely accepted that Kuru was transmitted among members of the Fore tribe of Papua New Guinea via cannibalism.」
　　[　https://en.wikipedia.org/wiki/Kuru_%28disease%29 2012-07-29　]　
　The first symptom of impending death is severe weakness and the inability to stand, and spongiform encephalopathy is when your brains change into mush and stream out any nearby open orifice.
　「Human cannibals likely took a big bite out of their fellow humans about 10,000 years ago, according to a study that examined prehistoric bones with scratch and bite marks on them. …In the end, they discovered 30 bones belonging to three individuals: a robust adult, a gracile adult and an infant. However, the infant had only one complete bone (a shoulder blade, or scapula) that did not show signs of cannibalism, the researchers said. …But the practice goes way back: there's even evidence of Neanderthal cannibalism in Belgium and Spain from more than 40,000 years ago, when they went extinct, Live Science previously reported.」
　　[　https://www.cbsnews.com/news/prehistoric-human-bones-show-signs-of-cannibalism/ 2017-03-28　]　

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
EDRDG: choke; suffocate; vomit; laugh heartily