Coronavirus (COVID-19) Collection
Differential clinical characteristics and performance of home antigen tests between parents and children after household transmission of SARS-CoV-2 during the Omicron variant pandemic
The SARS-CoV-2 Omicron variant (B.1.1.529) BA.2 pandemic struck in 2022. Children seemed to have a lower rate of infection than adults at the beginning of the COVID-19 pandemic, but the clinical scenario changed, especially after the Omicron variant outbreak [1]. The transmission of SARS-CoV-2 may vary according to different viral variants, settings, and individuals, and understanding the transmission rate and factors associated with transmission may help further control COVID-19. To this end, the difference in clinical symptoms and overall household transmission rate between children and adults needs further investigation.COVID-19 and kidney transplantation: the impact of remdesivir on renal function and outcome - a retrospective cohort study
Lifelong immunosuppression and the burden of comorbidities put organ transplant recipients at risk for unfavorable outcome after SARS-CoV-2 infection (Qin et al., 2021, Jager et al., 2020). The initial lack of knowledge concerning this new and puzzling disease as well as the absence of targeted and effective antiviral interventions during the early phases of the pandemic resulted in a mortality of kidney transplant (KTx) recipients exceeding 25% (Oltean et al., 2020). However, rapidly accumulating information, evolving guidelines, and several experimental treatments seem to have improved the outcomes following COVID-19 both in transplanted patients and the general population (Heldman et al., 2021, Elec et al., 2021, Villanego et al., 2021).Constrictive pericarditis after SARS-CoV-2 vaccination: A case report
Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is associated with a wide range of cardiovascular complications such as myocarditis, heart failure, arrhythmias, and venous thromboembolism (Chang et al., 2021). Although SARS-CoV-2 vaccination has been widely adopted to prevent the spread of COVID-19, vaccine-associated cardiovascular complications, such as myocarditis and pericarditis, have been reported (Bozkurt et al., 2021; Pepe et al., 2021).T-cell receptor repertoires as potential diagnostic markers for patients with COVID-19
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has spread rapidly worldwide (Lai et al., 2020). As of June 20, 2021, SARS-CoV-2 had affected more than 179 060 045 people globally, causing over 3.87 million deaths. In the USA, as many as 34 401 766 individuals had tested positive for COVID-19, and the death toll had reached 617 091 people (Baidu, 2021). The symptoms of COVID-19 include a dry cough, fever, diarrhea, fatigue, pneumonia, and conjunctivitis.SARS-CoV-2 rapid antigen testing in the healthcare sector: A clinical prediction model for identifying false negative results
Since its onset (Zhu et al., 2020), the coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), emerged to a major burden for the population in general but especially brought great challenges for the healthcare sector (Miller et al., 2020). Recent statistics presented by the German federal government agency Robert-Koch-Institute (RKI) show that cough, fever, nasal congestion, sore throat and loss of smell or taste are the most common symptoms caused by COVID-19 (RKI, 2021a).Inverse association between hypertension treatment and COVID-19 prevalence in Japan
SARS-CoV-2 is the causative virus for COVID-19. Cell entry of SARS-CoV-2 depends on angiotensin-converting enzyme II (ACE2), which is a membrane-associated zinc peptidase, and transmembrane serine protease 2, which is a cellular serine protease (Zhou et al., 2020b; Hoffmann et al., 2020; Hirano and Murakami, 2020). ACE2 is homologous with, but acts antagonistically to, angiotensin-converting enzyme (ACE) and has the critical function of protecting the lungs from severe acute injury (Imai et al., 2005).Factors associated with a prolonged negative conversion of viral RNA in patients with COVID-19
Cases of pneumonia of unknown etiology were first reported from Wuhan, Hubei Province, China in December 2019 (Shi et al., 2020). In February 2020, the World Health Organization (WHO) named this emerging disease coronavirus disease 2019 (COVID-19) and the agent responsible was identified as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (Lai et al., 2020).Patterns of viral clearance in the natural course of asymptomatic COVID-19: Comparison with symptomatic non-severe COVID-19
The first cases of coronavirus disease 2019 (COVID-19) were reported in Wuhan, China in December 2019 (Chen et al., 2020; Huang et al., 2020). The pathogen has been identified as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (Lu et al., 2020; Zhu et al., 2020). COVID-19 has rapidly become widespread across the world. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic. From the end of February through March 2020, Daegu—the fourth largest city in South Korea—was emerging as an epicenter of COVID-19 in South Korea.Preliminary estimates of the reproduction number of the coronavirus disease (COVID-19) outbreak in Republic of Korea and Italy by 5 March 2020
The novel coronavirus disease 2019 (COVID-19) outbreak has caused 6088 cases and 41 deaths in Republic of Korea, and 3144 cases and 107 death in Italy by 5 March 2020, respectively. We modelled the transmission process in the Republic of Korea and Italy with a stochastic model, and estimated the basic reproduction number R0 as 2.6 (95% CI: 2.3–2.9) or 3.2 (95% CI: 2.9–3.5) in the Republic of Korea, under the assumption that the exponential growth starting on 31 January or 5 February 2020, and 2.6 (95% CI: 2.3–2.9) or 3.3 (95% CI: 3.0–3.6) in Italy, under the assumption that the exponential growth starting on 5 February or 10 February 2020, respectively.Preliminary estimation of the novel coronavirus disease (COVID-19) cases in Iran: A modelling analysis based on overseas cases and air travel data
The coronavirus disease 2019 (COVID-19) was first reported in Wuhan, Hubei Province, China at the end of 2019, and soon spread to the rest of China and overseas (Bogoch et al., 2020). At the time of writing, 78 630 cases had been reported in China and 3664 cases had been confirmed in 46 other countries (World Health Organization, 2020). Iran has recently become an epicenter in the Middle East region and has seen the largest cumulative number of deaths outside China (Wikipedia, 2020). As of March 1, 2020, Iran had confirmed 987 COVID-19 cases, including 54 associated deaths (Wikipedia, 2020).
