Characteristics of COVID-19 infection in Beijing

Tian, Sijia; Hu, Nan; Lou, Jing; Chen, Kun; Kang, Xuqin; Xiang, Zhenjun; Chen, Hui; Wang, Dali; Liu, Ning; Liu, Dong; Chen, Gang; Zhang, Yongliang; Li, Dou; Li, Jianren; Lian, Huixin; Niu, Shaohua; Zhang, Luxi; Zhang, Jinjun

doi:10.1016/j.jinf.2020.02.018

Cited by 1,080 publications

(946 citation statements)

References 11 publications

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“…These asymptomatic patients could cause familial clusters [15]. According to Tian et al, asymptomatic infection rate was 5%, whereas in Diamond Princess Cruise Ship berthed at Tokyo Bay, Japan, it was nearly 18% [16,17]. Among a total of 72,314 China's cases, 889 were classified as asymptomatic (1%) [9].…”

Section: Asymptomatic Infectionmentioning

confidence: 99%

Epidemiology of COVID-19

Bulut¹,

Kato²

2020

Turk J Med Sci

321

280

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IntroductionCoronoviruses have been reported as causes of mild and moderate respiratory infections forover 50 years [1]. Even though this group of viruses have been isolated from many different animals, bats are accepted major natural reservoir of coronaviruses [2,3].Four human coronavirus, 229E, HKU1, NL63 and OC43, are known as causes of common cold in humans [1]. However, recently-detected coronaviruses, SARS CoV (2002), MERS-CoV (2012) completely altered all known approaches about this virus group because these viruses caused severe acute respiratory infections and nosocomial outbreaks. In the end of 2019, a novel coronavirus, now known as SARS-CoV-2 (2019), suddenly emerged in Wuhan, China. The World Health Organization declared that the epidemic is a public health emergency of international concern on January 31, 2020. As of April 16, 2020, the emerging coronavirus infection, COVID-19, has been spreading worldwide, causing over 2 million cases and over 137 thousand of death.In as much as this disease recently taken a significant place in our daily practice, as a new group of respiratory diseases, due to their higher rates of transmissibility, hospitalization, intensive care unit admission, severity of disease, mortality and so on, we should pay more attention than past to prevention and treatment of coronavirus infection. Origin of the SARS CoV-2 virusThe first cases of coronavirus disease COVID-19 were directly related to an animal market in Wuhan, China. Early investigations suggested that the origin of SARSCoV-2 may be bats. Zhou et al. demonstrate that SARS CoV-2 possesses 96% nucleotide identity with a bat coronavirus, for instance BetaCoV/RaTG13/2013 [4]. Epidemic curve of infectionAn epidemic curve of infection is a statistical chart used in epidemiology to visualize the onset of the coronavirus outbreak. In an epidemic curve, there are three zones: increasing, plateau, and declining phases.Increasing phase: This period is affected by many different parameters such as country demographics, age distribution, preparedness of health system to an outbreak, implementation of some preventive measures, country reaction time to a pandemic, reaction of society to new implementing rules. Different countries can exhibit quite different curve patterns and these facts could complicate

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Section: Asymptomatic Infectionmentioning

confidence: 99%

Epidemiology of COVID-19

Bulut¹,

Kato²

2020

Turk J Med Sci

321

280

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“…According to a Chinese study, among of 262 patients, 46 (17.6%) were severe cases, 216 (82.4%) were common cases, which including 192 (73.3%) mild cases, 11 (4.2%) non-pneumonia cases and 13 (5.0%) asymptomatic cases, respectively. [20] Also, Mizumoto et al [21] showed that the estimated asymptomatic proportion was 17.9% (95% credible interval (CrI): 15.5-20.2%) within the population onboard a cruise ship called the Diamond Princess. However, in an open letter to the authorities in the Tuscany region, Romagnani wrote that the vast majority of people infected with COVID-19, 50-75% were asymptomatic, but represented "a formidable source" of contagion.…”

Section: A Face Mask Must Be Placed On the Patient Even If The Patiementioning

confidence: 99%

Recommendations for Trauma and Emergency General Surgery Practice During COVID-19 Pandemic

Gök

Eryılmaz

Özmen

et al. 2020

Ulus Travma Acil Cerrahi Derg

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COVID-19 is a new disease, based on currently available limited information, older adults and people of any age who have severe underlying medical conditions may be at higher risk for severe illness from COVID-19. People of all age groups are also at risk. Healthcare providers have always been the professionals most exposed to the risk of contracting to any kind of infection due to the nature of their profession. Elective interventions have been postponed to give care of patients with COVID-19. However, some interventions cannot be delayed, such as trauma surgery, acute abdomen, and emergency endoscopies. To maintain the sustainability of the healthcare system, the protection of healthcare providers should be the top priority. On the other hand, patients, who need emergency healthcare, should also be provided with appropriate treatment. Healthcare professionals should choose a treatment method appropriately in the circumstances to protect themselves and their patients as much as possible. This paper aims to summarize how a surgeon may act appropriately when an intervention is inevitable during the COVID-19 pandemic.

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“…Finally, the familial cluster infected with COVID-19 has been reported in homes or hospital, especially without obvious symptoms [4]. According to our recent study, 5% of COVID-19 infection were asymptomatic cases [5]. If the asymptomatic cases cannot be found or isolated appropriately for medical observation, they will spread the virus to other close contacts quickly.…”

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confidence: 96%