研究发现，奥米克戎潜伏期仅三天
最近出现的新冠病毒奥米克戎变异株似乎很快就会表现出症状。
感染其他变异株的患者在约四五天后会出现咳嗽、头痛和发烧等症状，而奥米克戎变异株的潜伏期似乎更短。
博茨瓦纳和南非早在11月中旬首次发现了奥米克戎变异株，与其有关的数据依旧有限，但挪威最近的一项研究显示，从感染奥米克戎变异株到出现症状的中位数期限为三天，这意味着奥米克戎的传播速度更快。
这在检测结果中有所体现。在本月初发现第一例奥米克戎感染者之后，短短两周内新冠检测结果呈阳性的病例数就达到了自去年夏末以来的最高峰。《纽约时报》的新冠疫情数据库显示，上周三，美国新增病例242,794例。纽约在过去两周的新增病例增加了超过80%。美国消费者为了在节日聚会之前进行病毒检测，纷纷抢购家用检测试剂盒，CVS和沃尔格林（Walgreens）等连锁药店纷纷售罄。
与感冒类似的症状
奥米克戎依旧较新，美国疾病预防控制中心（Center for Disease Control and Prevention）表示其正在与合作伙伴收集其特征数据。在伦敦开展的早期研究显示，感染者最常见的症状是流涕、头痛、疲劳、打喷嚏和喉咙痛。
建议密切关注疾控中心所说的与之前的变异株相同的症状，包括：
发烧或发冷
咳嗽
呼吸急促或呼吸困难
肌肉痛或身体疼痛
失去味觉或嗅觉
充血
恶心呕吐
腹泻
完成疫苗接种后依旧会被传染，而且有研究显示，疫苗对奥米克戎变异株的防御力，不及其之前对其他变异株的预防效果。然而，疫苗依旧能有效防止重症，加强针疫苗也有助于防止病毒传播。未接种疫苗人群、老年人或有既往病症的患者依旧是最高风险人群。（财富中文网）
翻译：刘进龙
审校：汪皓
最近出现的新冠病毒奥米克戎变异株似乎很快就会表现出症状。
感染其他变异株的患者在约四五天后会出现咳嗽、头痛和发烧等症状，而奥米克戎变异株的潜伏期似乎更短。
博茨瓦纳和南非早在11月中旬首次发现了奥米克戎变异株，与其有关的数据依旧有限，但挪威最近的一项研究显示，从感染奥米克戎变异株到出现症状的中位数期限为三天，这意味着奥米克戎的传播速度更快。
这在检测结果中有所体现。在本月初发现第一例奥米克戎感染者之后，短短两周内新冠检测结果呈阳性的病例数就达到了自去年夏末以来的最高峰。《纽约时报》的新冠疫情数据库显示，上周三，美国新增病例242,794例。纽约在过去两周的新增病例增加了超过80%。美国消费者为了在节日聚会之前进行病毒检测，纷纷抢购家用检测试剂盒，CVS和沃尔格林（Walgreens）等连锁药店纷纷售罄。
与感冒类似的症状
奥米克戎依旧较新，美国疾病预防控制中心（Center for Disease Control and Prevention）表示其正在与合作伙伴收集其特征数据。在伦敦开展的早期研究显示，感染者最常见的症状是流涕、头痛、疲劳、打喷嚏和喉咙痛。
建议密切关注疾控中心所说的与之前的变异株相同的症状，包括：
发烧或发冷
咳嗽
呼吸急促或呼吸困难
肌肉痛或身体疼痛
失去味觉或嗅觉
充血
恶心呕吐
腹泻
完成疫苗接种后依旧会被传染，而且有研究显示，疫苗对奥米克戎变异株的防御力，不及其之前对其他变异株的预防效果。然而，疫苗依旧能有效防止重症，加强针疫苗也有助于防止病毒传播。未接种疫苗人群、老年人或有既往病症的患者依旧是最高风险人群。（财富中文网）
翻译：刘进龙
审校：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.
