Covid-19: breaking the chain of household transmissionBMJ 2020; 370 doi: 北京市住建委解读：抵扣后个税为零不影响在京购房 (Published 14 August 2020) Cite this as: BMJ 2020;370:m3181
- Shamil Haroon, clinical lecturer in primary care1,
- Joht Singh Chandan, academic clinical fellow in public health12,
- John Middleton, president3,
- Kar Keung Cheng, professor of public health and primary care1
- 1Institute of Applied Health Research, University of Birmingham, Birmingham, UK
- 2Warwick Medical School, University of Warwick, Coventry, UK
- 3Association of Schools of Public Health in the European Region (ASPHER)
- Correspondence to: S Haroon
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 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.
On the occasion of the New Year, may my wife and I extend to you and yours our warmest greetings, wishing you a happy New Year, your career greater success and your family happiness.
A new report released just last week confirmed that many of us are still using the word 'password' to access our accounts.
He then pressed all the buttons in the hope to get the elevator to work again, but to no avail. Sun then punched the "stop" button, to lock the elevator and secure it won't move.
In the tweet, Obama quoted Nelson Mandela, "No one is born hating another person because of the color of his skin or his background or his religion..."
The shortage of supply-chain talent explains why 48% of U.S. companies plan to snap up logistics grads in 2011, according to a new survey by the National Association of Colleges and Employers.
2. The new one childplus policy will substantially raise the birth rate, contributing up to 2million new children to the 2014 economy, a 15 percent one-year lift that willonly further boost consumer morale and spirit.
- 房产巨头搅局家居产业 业务多元化不可逆转
Forbes said that much of the decline in Trump's net worth is due to softness in the midtown Manhattan real estate market.
17. Most Complex Hurdle As of Dec. 7, seven out of 20 domestic top-grossing movies released this year had female-driven stories, according to the website Box Office Mojo. By contrast, five out of 20 female-driven stories topped the international market, which accounts for some 70 percent of the industry’s revenue. This may look bad, but the numbers appear marginally better than they have in recent years.
According to the institution, only women with a net worth exceeding 8 billion yuan are eligible to be selected as one of the top 50 richest women in China.
200911/88512.shtmlDuring NATO’s 1999 air war over Yugoslavia the Atlantic alliance struck hundreds of targets over Serbia and Kosovo. Most were uncontroversial: air-defense sites army headquarters and other military targets. The destruction of one target in particular however set off a wave of anti-Western—and anti-American in particular—protests half a world away. That target was the Chinese embassy in Belgrade.
Justin Bieber was the big winner of the evening at the American Music Awards last night, taking home four accolades including Favorite Pop/Rock Male Artist, Fa