ABSTRACT
Background Delta and Omicron are two main variants that have been prevalent since 2021. However, the Omicron variant of severe acute respiratory syndrome coronavirus 2 shows a less severe clinical presentation and high transmissibility. Therefore, we carried out this retrospective study to evaluate Omicron severity compared with the Delta variant and further comprehend the differences in clinical characteristics in patients with the Omicron variant. Methods We extracted clinical data and compared clinical severity, symptoms, vaccination status, laboratory parameters, viral shedding time, and computed tomography (CT) imaging between the two groups of patients, which included 109 COVID-19 cases with the Delta variant and 183 cases with the Omicron variant, from January 19 to April 1, 2022, in Beijing Ditan Hospital. In addition, the Beijing Center for Disease Prevention and Control conducted whole-genome sequencing. Results We obtained 94 strains of variants of concern/Delta and 110 strains of variants of concern/Omicron. For the 110 Omicron strains, three were assigned as BA.1.1, 53 as BA.2, and 54 as BA.2.2. Among patients with the Delta variant, 54% (59/109) were moderate, which was significantly higher than that of patients with the Omicron variant (7% (12/183), P < 0.001). The number of patients with mild symptoms in the Omicron group was significantly higher than in the Delta group (80% vs. 35%, P < 0.001). Compared with the Omicron group, patients with underlying diseases or obesity, 60 years or older, or unvaccinated in the Delta group had more severe disease, and there was a significant difference between the two groups. The viral shedding time in the Omicron group was shorter than in the Delta group ((11.9 ± 5.9) vs. (14.0 ± 5.8) days, P = 0.003). Among the 183 patients in the Omicron group, 104 (57%) had dry or sore throat symptoms, more than those in the Delta group (34% (37/109);P < 0.001). In the Delta group, patients in the moderate group had more fever and cough symptoms than those in the mild group. The remission time of CT imaging in the Omicron group was shorter than in the Delta group ((9.0 ± 5.2) vs. (13.2 ± 4.2) days, P = 0.018). Conclusions Patients with Delta variants are more likely to have pneumonia, mainly with fever and cough symptoms, while patients with the Omicron variant are mostly mild, with more prominent dry or sore throat symptoms. In addition, patients with the Omicron variant have a short viral shedding time and rapid absorption of pneumonia.
ABSTRACT
Introduction: In November 2021, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant was identified as the variant of concern and has since spread globally, replacing other cocirculating variants. To better understand the dynamic changes in viral load over time and the natural history of the virus infection, we analyzed the expression of the open reading frames 1ab (ORF1ab) and nucleocapsid (N) genes in patients infected with Omicron. Methods: We included patients initially admitted to the hospital for SARS-CoV-2 infection between November 5 and December 25, 2022. We collected daily oropharyngeal swabs for quantitative reverse transcriptase-polymerase chain reaction tests using commercial kits. We depicted the cycle threshold (Ct) values for amplification of ORF1ab and N genes from individual patients in age-specific groups in a time series. Results: A total of 480 inpatients were included in the study, with a median age of 59 years (interquartile range, 42 to 78; range, 16 to 106). In the <45-year-old age group, the Ct values for ORF1ab and N gene amplification remained below 35 for 9.0 and 11.5 days, respectively. In the ≥80-year-old age group, the Ct values for ORF1ab and N genes stayed below 35 for 11.5 and 15.0 days, respectively, which was the longest among all age groups. The Ct values for N gene amplification took longer to rise above 35 than those for ORF1ab gene amplification. Conclusion: The time to test negative varied among different age groups, with viral nucleic acid shedding taking longer in older age groups compared to younger age groups. As a result, the time to resolution of Omicron infection increased with increasing age.
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This study examined the impactof social isolation on cognitive function and Quality of Life (QoL) among acute ischemic stroke (AIS) patients in China. We conducted in-person interviews among 206 AIS patients during the acute stage and at 3-month after onset in three cities between May 2020 and February 2021. The data was collected during and post-COVID-19 period in China. We conducted bivariate and multipleregression analyses.Results show that over time, average level of social isolation decreased, and cognitive function and QoL increased.After controllingfor covariates, social isolation was negatively associated with cognitive function (β=-0.438, p<0.01) and QoL (β=-2.521, p<0.01). These findings suggest that addressing the issue of social isolation could potentially impact patients’ cognitive function and QoL.Future studies are needed to further examine the linkages between long-term social isolation and changes in cognitive function and QoL among AIS patients.
ABSTRACT
OBJECTIVES: The current study aims to explore person-centered communication between health care professionals and COVID-19-infected older patients in acute care settings. METHODS: The current qualitative study explored the communication between professionals and COVID-19-infected older adults in the acute care setting through 2 rounds of interviews with physicians and nurses who provided direct care and treatment for COVID-19-infected older patients in Wuhan, China. We explored the possibilities and significance of facilitating effective communication despite multiple challenges in the pandemic. Conventional content analysis was adopted to analyze the rich data collected from our participants. RESULTS: It is possible and necessary to initiate and sustain person-centered communication despite multiple challenges brought by the pandemic. The achievement of person-centered communication can play significant roles in addressing challenges, building mutual trust, improving quality of care and relationships, and promoting treatment adherence and patients' psychological well-being. DISCUSSION: It is challenging for health care professionals to provide care for COVID-19-infected older adults, especially for those with cognitive and sensory impairment, in acute care settings. Facilitating person-centered communication is a significant strategy in responding to the pandemic crisis and a core element of person-centered care.