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“金九银十”来临! 家居建材市场表现仍可期

Editorials

Covid-19: breaking the chain of household transmission

BMJ 2020; 370 doi: 2万亿减负力度空前超预期 企业乐享减税降费多重红利 (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

“一带一路”给我国LED产业带来新商机

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.

n. 三角(形)
他补充说道:“我很兴奋能有机会重返中国,并享受这个国家的文化以及把NBA现场比赛的激动直接带给中国球迷。”
sup在下面+ply重叠,折叠→重叠下去→供应[下去],补给
Type D personalities usually have a low self-esteem and a great fear of disapproval and this is the primary reason that prevents them from opening up to others.
她说:“妈妈会说,‘噢,天呐,我们去看一下爱莉安娜?格兰德(Ariana Grande)吧。'我的反应是,‘妈,真要这样吗'”
The value of goods that crossed international borders last year fell 13.8 per cent in dollar terms — the first contraction since 2009 — according to the Netherlands Bureau of Economic Policy Analysis’s World Trade Monitor. Much of the slump was due to a slowdown in China and other emerging economies.
The swap is due largely to the major security breach at software company Adobe in October which affected tens of millions of users.

收入最高的十位模特中有九位都在内衣品牌维多利亚的秘密有相应的工作,大码模特阿什莉是唯一的例外。
Nevertheless, as New Yorkers grow accustomed to a sharing economy, buildings might ultimately have to embrace it.
周二,萨尔州成为德国第一个禁止外国政客拉票的地区。德国数个地方议会基于消防安全等技术原因,取消了土耳其部长们原计划的拉票集会。
特朗普与中国的贸易战
Against: Although it picked up a best editing prize from the LA Film Critics Association, it was ignored by their New York counterparts. Could its momentum be waning

Footnotes

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观点:中国商业航天梦即将成为现实
The .40-calibre Smith & Wesson that killed her, a semi-automatic handgun, was seized by police to undergo ballistics testing to determine if it had been used in other crimes.
Still, experts see a crisis of white identity underlying much of the West’s current turmoil.
网上零售对北京市社会消费品零售额的贡献率达到82.6%。网上零售也促使一些传统商店开展线上销售,北京77家老字号中的13家开展了网上零售业务,商品涉及小吃、鞋等。
n. 失业,失业人数
当你和他/她在一起的时候,你看不见周围的所有人,你的眼中只有他/她

关掉实体店再开实体店 酷漫居“折返跑”为哪般

References

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