incubation period

• The incubation period is 2 to 10 days
  二至十日。
• Travel history : travelled to asian areas during the incubation period
  外游记录: ：于发病潜伏期间曾前往亚洲地区
• The incubation period varies from 2 to 10 days , commonly 3 to 4 days
  疾病的潜伏期由二至十日，一般为三至四日。
• The incubation period varies from 2 to 10 days , commonly 3 to 4 days
  疾病的潜伏期由二至十日，一般为三至四日。
• The incubation period usually varies from 2 to 4 days , but it can be even longer
  潜伏期约二至四日，或可以更长。
• The incubation period is about 2 weeks and can range from 1 to 3 weeks
  潜伏期可由1至3星期不等。较常见为两星期。
• The incubation period ranges from a few hours to 5 days , usually 2 to 3 days
  由数小时至五日不等，通常为两至三日。
• The incubation period is usually around 3 to 7 days . mode of transmission
  常见于夏天及初秋时分，潜伏期约三至七天。
• The incubation period is typically 2 to 7 days , but can be up to 10 days
  疾病的潜伏期由2至7日不等，但亦可长达10日。
• The incubation period varies , depending on the type of parasite contracted
  潜伏期的长短视乎所感染的寄生虫种类而定。