1
contract dengue
contract 是正式用词，表示“感染（疾病）”。
He contracted dengue while traveling in Southeast Asia.
他在东南亚旅行时感染了登革热。
登革热
先理解核心含义，再看它在真实句子里的用法。
登革热
An infectious tropical disease transmitted by mosquitoes, characterized by rash and aching head and joints.
He contracted dengue while traveling in Southeast Asia.
他在东南亚旅行时感染了登革热。
由登革病毒(一种黄病毒)引起、经伊蚊传播的(亚)热带急性发热性疾病,表现为高热、皮疹、头痛及严重肌肉和关节疼痛。
An acute febrile disease of the (sub)tropics caused by the Dengue virus, a flavivirus, transmitted by Aedes mosquitoes, and characterized by high fever, rash, headache, and severe muscle and joint pain.
After the rainy season, the city reported an increase in dengue cases.
雨季过后，该市报告的登革热病例有所增加。
The nurse told us that dengue is spread by mosquito bites.
护士告诉我们登革热是通过蚊虫叮咬传播的。
People are advised to remove standing water to prevent dengue.
人们被建议清除积水以预防登革热。
contract 是正式用词，表示“感染（疾病）”。
He contracted dengue while traveling in Southeast Asia.
他在东南亚旅行时感染了登革热。
dengue fever 是 dengue 的常见全称，二者常通用。
Dengue fever is a serious illness in the tropics.
登革热是热带地区一种严重的疾病。
outbreak 指疾病的突然暴发，常与 of 连用。
The authorities reported an outbreak of dengue in the city.
当局报告该市暴发了一起登革热疫情。
登革热主要由埃及伊蚊传播。
Dengue is transmitted by mosquitoes.
登革热通过蚊子传播。
Not this
He got a dengue last summer.
Use this
He got dengue last summer.
dengue 指登革热，是疾病名称，通常作不可数名词，前面不加不定冠词 a。
Not this
She was infected by dengue.
Use this
She was infected with dengue.
表示感染某种疾病时，英语用 be infected with + 疾病，而 by 用来引出感染源（如蚊子）。
Not this
He suffered dengue for two weeks.
Use this
He suffered from dengue for two weeks.
动词 suffer 表示“患（病）”时是不及物动词，须接介词 from，即 suffer from + 疾病。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
登革热
The patient was hospitalized with dengue fever.
这名患者因登革热住院。
重症登革热
Severe dengue can be life-threatening if not treated promptly.
重症登革热若不及时治疗可能危及生命。
登革热疫情
The city reported a dengue outbreak after the rainy season.
雨季过后，该市报告了登革热疫情。
登革病毒
The dengue virus is spread by Aedes mosquitoes.
登革病毒由伊蚊传播。
登革热疫苗
Scientists are developing a new dengue vaccine.
科学家正在研制一种新的登革热疫苗。
登革热病例
Dengue cases have increased this year.
今年登革热病例有所增加。
Use dengue naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
将 dengue 联想为“登革”（登革热），由蚊子传播，症状是高热、皮疹和关节痛，记住这个“登革”发热病即可。
语域：neutral 常见场景：public health notices、medical reports、travel health guidance 登革热是一种疾病的正式名称，通常出现在医疗、公共卫生和新闻等较正式或中性的语境中，日常口语中较少单独使用。
这些词都拼作 -gue，但发音不同：dengue /ˈdɛŋɡi/ 的结尾是 /ŋɡi/；vague、plague 结尾是 /ɡ/（元音不同），fatigue、colleague 结尾是 /iːɡ/，tongue 的 ngue 读 /ŋ/。因此它们只是拼写近似，不是真正的同韵词。
Dictionary facts from ECDICT, WIKTIONARY.