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房地产投资回升还需两年 重点防范通缩风险

Editorials

Covid-19: breaking the chain of household transmission

BMJ 2020; 370 doi: 业内:下半年调控局部收紧 一线房价仍将上升 (Published 14 August 2020) Cite this as: BMJ 2020;370:m3181

Read our latest coverage of the coronavirus outbreak

  1. Shamil Haroon, clinical lecturer in primary care1,
  2. Joht Singh Chandan, academic clinical fellow in public health12,
  3. John Middleton, president3,
  4. Kar Keung Cheng, professor of public health and primary care1
  1. 1Institute of Applied Health Research, University of Birmingham, Birmingham, UK
  2. 2Warwick Medical School, University of Warwick, Coventry, UK
  3. 3Association of Schools of Public Health in the European Region (ASPHER)
  1. Correspondence to: S Haroon s.haroon{at}bham.ac.uk

温州家具业拟投资10亿元在平阳建直销中心

The UK is one of the countries most severely affected by covid-19. Recent outbreaks in English towns such as Oldham, probably involving transmission within large multigenerational households, show the importance of getting the right public health measures in place now to prevent more widespread surges in infections.1

Current test and trace policies have mainly focused on preventing spread in care homes, hospitals, and in the community.2 However, contact within households is thought to be responsible for roughly 70% of SARS-CoV-2 transmission when widespread community control measures are in place.3 In Wuhan, the reproduction number (R) dropped from 3.54 to 1.18 after lockdown and cordon sanitaire. But the epidemic was only brought under complete control when Fangcang (field) hospitals were introduced to isolate cases outside the home, with R dropping to 0.51 after two weeks.4

Current UK guidance advises household contacts to isolate within the same home as the index case for 14 days.5 They make up the majority of contacts for infected individuals and are likely to remain exposed to the infected household member during this period of isolation.6 Despite guidance advising household members to socially distance, contacts are likely to interact repeatedly—during mealtimes, for example—and to share facilities such as bathrooms.

We know that transmission is more likely to occur indoors than outdoors.7 The cumulative risk to household contacts from an infected person is likely to be substantial during peak viral shedding. In one study in New York State, 38% of household contacts tested positive for SARS-Cov-2, and similar secondary infection rates have been reported in China.89 Transmission may be even higher among household contacts of essential workers, who are at greater risk of being infected than the general population.10

Household members who are older, have underlying medical conditions, or share a bed or vehicle with the index case are the most susceptible.91112 Children seem to be at lower risk of being infected.13 However, their stool samples and nasopharyngeal swabs can remain positive for SARS-CoV-2 for more than two weeks after symptom resolution,14 although their role in transmission remains to be established.

Governments should consider new public health measures to prevent household transmission as we prepare for a potential second wave. Household quarantine is likely to remain an important pandemic control measure, and government support for people quarantined at home is conspicuously absent in the UK: this position has been challenged by independent experts.15

Effective isolation

Effective isolation of index cases from household members could reduce secondary infections.12 Wearing masks within quarantined households may help, particularly if used by the index case as soon as infection is suspected.16 The World Health Organization recommends that infected people and unavoidable close contacts, particularly those in vulnerable groups, should wear medical masks, but Public Health England does not currently recommend this. Other measures that should be considered (and evaluated) include clear advice on enhanced personal hygiene; cleaning and disinfecting shared toilets and other common spaces, door handles, and touch points; and staggering mealtimes.

People who are unable to self-isolate safely at home could be accommodated in special isolation facilities such as hotels and hostels, an approach adopted by some other countries, including Italy, Finland, and Lithuania.17 In China, field hospitals were created to manage and strictly isolate patients with mild-to-moderate covid-19.18 Nightingale hospitals in the UK could be similarly repurposed to support isolation of infected people with mild-to-moderate disease. As medical and nursing care needs are mostly modest, the cost would be relatively low. However, such a system depends on access to rapid testing for anyone with symptoms or possible exposure so that infection can be confirmed and isolation started before transmission occurs. It would also require public trust that isolation in these facilities would be voluntary, safe, and supportive.

很多明星获得的小金人都被放在了父母身边,安吉丽娜·朱莉(Angeline Jolie)已故的母亲多年来一直保存着女儿因影片《女生向前走》(Girl)获得的最佳女配角奖杯。妮可·基德曼(Nicole Kidman)因影片《时时刻刻》(《The Hours》)获得了最佳女主角奖,奖杯就放在她父母家中的壁炉台上,来串门的邻居都可以看到。詹妮弗·劳伦斯(Jennifer Lawrence)于2013年凭借《乌云背后的幸福线》(Silver Linings Playbook)获得第85届奥斯卡最佳女主角,奖杯放在她父母家中的钢琴上。
2. paparazzo /[复] paparazzi / n . 专门追逐名人偷拍照片的摄影者(或记者),狗仔队。
Around 280 million train tickets have been sold on 12306.cn since Jan 3, 2018 when tickets for the Spring Festival holiday started selling.
To provide assistance to these laid-off workers will continue to be our priority in cutting overcapacity and pursuing the supply-side structural reform.
奥运会是世界各国放下分歧、从事体育运动的时刻。不过这究竟能否付诸实践,还是有争议的。虽然运动员们一定会专注于比赛,不过长期存在的分歧很难会被他们的祖国遗忘,即使是暂时遗忘。
The potential for conflict will force China and the US to redefine their roles in a shifting environment that neither is comfortable with. Tensions will be aggravated by anti-China sentiment during the American elections. Asian countries are in a position to delineate the boundaries of influence for these two powers but, given their varied interests, alliances will shift depending on individual concerns.
The United Kingdom ranks No. 3 overall. It ranks No. 4 in Power and No. 5 in Cultural Influence.

*Guest Actress in a Drama Series: Margo Martindale, “The Americans”
The prize sold for far more than the gallery's estimate of $50,000 to $100,000. The only other Nobel Peace Prize known to have sold at auction was a 1903 medal that brought nearly $17,000 in 1985.
此外,维密的许多其他模特也被禁止入境,包括来自俄罗斯的朱莉亚·贝亚科娃、凯特·格里戈瑞瓦和伊丽娜·莱巴里科娃以及乌克兰的达莎·凯尔斯顿。
但尽管安全研究人员不断发出警告,很多人仍在给个人设备设置安全等级弱、容易被破解的密码。
Meanwhile, figures such as Wang Jianlin, China’s richest man, have raised concerns about Chinese state-owned enterprises’ investments in Europe, arguing that they lack international management standards.

Footnotes

  • “王吴”抢做O2O 雷士传统渠道现危机
  • 陈女士说:“所有这些搜索项综合反映了2010年的许多方面,还反映了这一年政治和技术领域的变革。”

Good Time
认真思考一下:未来的经历能提高你的知识和技能吗?它是否会让你接触到新的观点,认识不同的人?(这些都是支持你对机会说“Yes”的好理由!)你需要为了管理团队或与经验更加丰富的同事共事而培养新技巧吗?如果答案是肯定的,那就接受这种挑战,走出你的舒适区。
科森重塑了卡瑞尔的鼻子,把它变成鹰钩鼻。他还把卡瑞尔的发际线往后刮了一点,留出更多额头。
在上周二晚上放学后,孙轶潇乘坐电梯回家,可是电梯突然故障停止运行。
支持:《敦刻尔克》讲述了一场重要的历史事件,深受观众和影评人喜爱。
This technology previously existed for arms, but legs are rather more complicated. And since a misread signal can send you jumping off a bridge or in front of a moving car, thought-controlled legs need more stringent programming than equivalent arms. As one of the researchers delicately put it, “If you're using a bionic arm and it misbehaves, the elbow may move slightly. If the prosthetic leg misbehaves . . . that could be quite a safety issue.”

都是开发商的“套路” 一不小心都是购房的坑

References

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