Unfortunately, whether one merely feels like one has the flu, develops severe pain, or begins massive hemorrhaging, depends on one's constitution, the number of times infected, or mutations in the virus, factors for which medical science can offer no help.
只可惜同樣被病媒蚊叮咬，為什麼有人只像感冒一場、有人伴隨奇痛和奇癢、有人卻引發全身性嚴重出血；究竟是因為個人體質、病毒突變、或是其他原因，醫學界還沒有答案。