For those with a weakened immune system, the elderly and the very young, there's a chance the virus could cause a lower, and much more serious, respiratory tract illness like a pneumonia(肺炎) or bronchitis(支氣管炎).

　　There are a handful of human coronaviruses that are known to be deadly(致命的), such as Middle East respiratory syndrome (MERS)and SARS (Severe acute respiratory syndrome).

　　The Wuhan coronavirus is currently thought to be more mild than SARS and MERS and takes longer to develop symptoms. Patients to date have typically experienced a mild cough for a week followed by shortness of breath(呼吸急促). So far, around 15% to 20% of cases have become severe, requiring, for example, ventilation in the hospital.

　　通常表現(xiàn)為輕中度上呼吸道疾病，癥狀類似于普通感冒。對(duì)于免疫力較弱的老年人和兒童，病毒有可能導(dǎo)致更嚴(yán)重的下部呼吸道疾病，如肺炎或支氣管炎。

　　有些冠狀病毒是致命的，如中東呼吸綜合征（MERS）和SARS。

　　目前認(rèn)為，武漢冠狀病毒相較SARS和MERS更為溫和，潛伏時(shí)間更長(zhǎng)。到目前為止，患者通常在一周內(nèi)出現(xiàn)輕微咳嗽，隨后出現(xiàn)呼吸急促癥狀。目前，大約15%到20%的病例病情出現(xiàn)惡化情況，需要入院并接受呼吸機(jī)治療。

　　3. 傳播途徑

　　How does it spread？

　　Viruses can spread from human contact(接觸) with animals.

　　When it comes to human-to-human transmission(傳播，名詞) of the viruses, often it happens when someone comes into contact with an infected person's secretions(分泌物), such as droplets(小水滴，飛沫)in a cough.

　　Depending on how virulent the virus is, a cough, sneeze or handshake could cause exposure(暴露，接觸). The virus can also be transmitted by touching something an infected person has touched and then touching your mouth, nose or eyes.

　　病毒可通過(guò)人類與動(dòng)物的接觸傳播。

　　病毒在人與人之間傳播時(shí)，通常發(fā)生在接觸到感染者的分泌物時(shí)，例如咳嗽時(shí)的飛沫。

　　根據(jù)病毒的毒力，咳嗽、打噴嚏或握手都可能導(dǎo)致暴露。這種病毒也可以通過(guò)觸摸被感染者觸摸過(guò)的東西，然后觸摸嘴、鼻子或眼睛來(lái)傳播。

　　4. 感染人群

　　Who is affected?

　　MERS, SARS and the Wuhan coronavirus appear to cause more severe disease in older people, though uncertainty remains around the latest outbreak(爆發(fā)). Of the cases of Wuhan coronavirus reported so far, none are yet confirmed to be among children. The average age is people 40 or over.

　　盡管最近的武漢冠狀病毒疫情仍不確定，但MERS、SARS和武漢冠狀病毒似乎在老年人中會(huì)引起更嚴(yán)重的癥狀。在迄今報(bào)道的武漢冠狀病毒病例中，尚未證實(shí)有兒童感染。感染者平均年齡在40歲以上。

　　5. 冠狀病毒感染的治療

　　Coronavirus treatment

　　There is no specific treatment, but research is underway. Most of the time, symptoms will go away on their own(自行消失) and experts advise seeking care early. If symptoms feel worse than a standard cold, see your doctor.

　　Doctors can relieve(緩解) symptoms by prescribing(開處方)a pain or fever medication.

　　目前還沒(méi)有具體的治療方法，但研究仍在進(jìn)行中。多數(shù)情況下癥狀會(huì)自行消失，但專家建議盡早尋求治療。如果癥狀比標(biāo)準(zhǔn)感冒更嚴(yán)重，請(qǐng)看醫(yī)生。

　　醫(yī)生可以通過(guò)開止痛藥或退燒藥來(lái)緩解癥狀。

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