研究發現，奧米克戎潛伏期僅三天
JESSICA MATHEWS
2021-12-31
最近出現的新冠病毒奧米克戎變異株似乎很快就會表現出癥狀。
感染其他變異株的患者在約四五天后會出現咳嗽、頭痛和發燒等癥狀，而奧米克戎變異株的潛伏期似乎更短。
博茨瓦納和南非早在11月中旬首次發現了奧米克戎變異株，與其有關的數據依舊有限，但挪威最近的一項研究顯示，從感染奧米克戎變異株到出現癥狀的中位數期限為三天，這意味著奧米克戎的傳播速度更快。
這在檢測結果中有所體現。在本月初發現第一例奧米克戎感染者之后，短短兩周內新冠檢測結果呈陽性的病例數就達到了自去年夏末以來的最高峰。《紐約時報》的新冠疫情數據庫顯示，上周三，美國新增病例242,794例。紐約在過去兩周的新增病例增加了超過80%。美國消費者為了在節日聚會之前進行病毒檢測，紛紛搶購家用檢測試劑盒，CVS和沃爾格林（Walgreens）等連鎖藥店紛紛售罄。
與感冒類似的癥狀
奧米克戎依舊較新，美國疾病預防控制中心（Center for Disease Control and Prevention）表示其正在與合作伙伴收集其特征數據。在倫敦開展的早期研究顯示，感染者最常見的癥狀是流涕、頭痛、疲勞、打噴嚏和喉嚨痛。
建議密切關注疾控中心所說的與之前的變異株相同的癥狀，包括：
發燒或發冷
咳嗽
呼吸急促或呼吸困難
肌肉痛或身體疼痛
失去味覺或嗅覺
充血
惡心嘔吐
腹瀉
完成疫苗接種后依舊會被傳染，而且有研究顯示，疫苗對奧米克戎變異株的防御力，不及其之前對其他變異株的預防效果。然而，疫苗依舊能有效防止重癥，加強針疫苗也有助于防止病毒傳播。未接種疫苗人群、老年人或有既往病癥的患者依舊是最高風險人群。（財富中文網）
翻譯：劉進龍
審校：汪皓
最近出現的新冠病毒奧米克戎變異株似乎很快就會表現出癥狀。
感染其他變異株的患者在約四五天后會出現咳嗽、頭痛和發燒等癥狀，而奧米克戎變異株的潛伏期似乎更短。
博茨瓦納和南非早在11月中旬首次發現了奧米克戎變異株，與其有關的數據依舊有限，但挪威最近的一項研究顯示，從感染奧米克戎變異株到出現癥狀的中位數期限為三天，這意味著奧米克戎的傳播速度更快。
這在檢測結果中有所體現。在本月初發現第一例奧米克戎感染者之后，短短兩周內新冠檢測結果呈陽性的病例數就達到了自去年夏末以來的最高峰。《紐約時報》的新冠疫情數據庫顯示，上周三，美國新增病例242,794例。紐約在過去兩周的新增病例增加了超過80%。美國消費者為了在節日聚會之前進行病毒檢測，紛紛搶購家用檢測試劑盒，CVS和沃爾格林（Walgreens）等連鎖藥店紛紛售罄。
與感冒類似的癥狀
奧米克戎依舊較新，美國疾病預防控制中心（Center for Disease Control and Prevention）表示其正在與合作伙伴收集其特征數據。在倫敦開展的早期研究顯示，感染者最常見的癥狀是流涕、頭痛、疲勞、打噴嚏和喉嚨痛。
建議密切關注疾控中心所說的與之前的變異株相同的癥狀，包括：
發燒或發冷
咳嗽
呼吸急促或呼吸困難
肌肉痛或身體疼痛
失去味覺或嗅覺
充血
惡心嘔吐
腹瀉
完成疫苗接種后依舊會被傳染，而且有研究顯示，疫苗對奧米克戎變異株的防御力，不及其之前對其他變異株的預防效果。然而，疫苗依舊能有效防止重癥，加強針疫苗也有助于防止病毒傳播。未接種疫苗人群、老年人或有既往病癥的患者依舊是最高風險人群。（財富中文網）
翻譯：劉進龍
審校：汪皓
It doesn’t seem to take long for symptoms of COVID’s latest variant, Omicron, to start showing up.
While it’s taken around four or five days for coughs, headaches, and fevers to manifest when infected with previous COVID strains, it looks as if the incubation time table for Omicron is even more abbreviated.
Data is still limited on COVID’s latest variant, which was first detected in Botswana and South Africa in mid-November, but a recent study in Norway indicates a median three-day window between exposure to the Omicron variant and symptoms—meaning that Omicron is able to spread more quickly.
That’s certainly playing out in the test results. A mere two weeks after the first Omicron case was identified at the beginning of this month, positive COVID cases are at their highest levels since late summer. There were 242,794 new reported cases in the U.S. on Wednesday, according to the New York Times COVID database. New cases are up more than 80% in New York over two weeks. And chains such as CVS and Walgreens are selling out of in-home tests as consumers scramble to detect the virus before holiday gatherings.
Cold-like symptoms
Omicron is still new, and the Center for Disease Control and Prevention says it is still working with partners to gather data on the variant’s characteristics. Early research conducted in London suggests that a runny nose, headache, fatigue, sneezing, and a sore throat are the most common symptoms.
It’s a good idea to stay on the lookout for the symptoms synonymous with earlier strains, which include the following, per the CDC:
Fever or chills
Cough
Shortness of breath or difficulty breathing
Muscle or body aches
New loss of taste or smell
Congestion
Nausea or vomiting
Diarrhea
People who are fully vaccinated can still be infected, and some studies indicate that vaccines aren’t as successful at preventing Omicron infection as they have been with previous variants. However, vaccines are still highly effective in preventing severe cases of COVID, and boosters help. Those who are unvaccinated, the elderly, or people with pre-existing conditions are still the most at risk.
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