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contract cholera
contract 是较正式的用词，表示感染（疾病），后接病名。
He contracted cholera after drinking contaminated water.
他喝了受污染的水后染上了霍乱。
霍乱
choleras — plural of cholera
先理解核心含义，再看它在真实句子里的用法。
霍乱
A serious infectious disease that causes severe watery diarrhea and dehydration, typically spread through contaminated water or food.
He contracted cholera after drinking contaminated water.
他喝了受污染的水后染上了霍乱。
霍乱；人或家畜的急性肠道传染病,由霍乱弧菌经污染的水或食物引起,以严重腹泻、腹绞痛、恶心、呕吐和脱水为特征。
Any of several acute infectious diseases of humans and domestic animals, caused by certain strains of the Vibrio cholerae bacterium through ingestion of contaminated water or food, usually marked by severe gastrointestinal symptoms such as diarrhea, abdominal cramps, nausea, vomiting, and dehydration.
由摄入受污染的水或食物引起的急性肠道感染
an acute intestinal infection caused by ingestion of contaminated water or food
The outbreak of cholera required an immediate vaccination campaign.
霍乱的爆发需要立即进行疫苗接种运动。
Access to clean drinking water is essential to prevent cholera.
获得清洁饮用水对预防霍乱至关重要。
Severe diarrhea and vomiting are common symptoms of cholera.
严重腹泻和呕吐是霍乱的常见症状。
contract 是较正式的用词，表示感染（疾病），后接病名。
He contracted cholera after drinking contaminated water.
他喝了受污染的水后染上了霍乱。
outbreak of 后接疾病名，指疾病的突然暴发。
The government is trying to control an outbreak of cholera.
政府正努力控制霍乱疫情。
die of 后可接具体疾病名称，表示死亡原因。
In the past, many people died of cholera.
过去，许多人死于霍乱。
Not this
Many people in that area suffer cholera every year.
Use this
Many people in that area suffer from cholera every year.
动词suffer表示“患（病）”时是不及物动词，必须加介词from再接疾病名；汉语“患霍乱”是及物结构，中文学习者容易直接套用，漏掉from。
Not this
He caught a cholera from the contaminated water.
Use this
He caught cholera from the contaminated water.
cholera是不可数名词，指霍乱这种疾病时不能用不定冠词a；只有在指不同类型的霍乱时才可加复数choleras。此处说感染了一次霍乱，不能用a。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
霍乱暴发
The country is struggling to contain the cholera outbreak.
该国正在努力控制霍乱暴发。
霍乱流行
A cholera epidemic swept through the region in the nineteenth century.
十九世纪，一场霍乱流行席卷了该地区。
霍乱疫苗
Travelers to high-risk areas should consider getting the cholera vaccine.
前往高风险地区的旅行者应考虑接种霍乱疫苗。
感染霍乱
Without clean water, people are more likely to contract cholera.
没有清洁用水，人们更有可能感染霍乱。
霍乱弧菌
Cholera bacteria spread through contaminated water.
霍乱弧菌通过受污染的水传播。
霍乱患者
The clinic was set up to treat cholera patients.
该诊所是为治疗霍乱患者而设立的。
霍乱时期的爱情
It is the title of a famous novel by Gabriel García Márquez about a love affair that endures for more than half a century, set against the backdrop of a cholera epidemic.
这是加夫列尔·加西亚·马尔克斯的著名小说的书名，讲述了一段跨越半个多世纪的爱情故事，以霍乱疫情为背景。
Use choleras naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象“渴了拉”（cholera 谐音）：喝了脏水，渴了又拉肚子，记住就是霍乱。
语域：formal 常见场景：medical literature、public health reports、news reports 霍乱是比较正式的医学/公共卫生术语，通常用于新闻报道、医学文献或官方健康通报等正式场合，日常口语中较少单独使用。
不可数名词
Dictionary facts from ECDICT, WIKTIONARY.