Objective: To assess the acceptance of coronavirus disease (COVID-19) vaccine among healthcare workers at two general hospitals in Vietnam when it is available. Methods: A cross-sectional study was conducted using a convenience sampling from January to February 2021 among 410 healthcare workers at two general hospitals in Vietnam via a self-administered questionnaire. A multivariable regression analysis was performed to determine predictors of vaccine acceptance including the demographic factors, COVID-19 knowledge, and vaccine beliefs based on the domains of Health Belief Model. Results: Among 410 healthcare workers, 76.10% showed vaccination willingness. Predictors of acceptance were determined that the group reporting as “vaccine acceptance” was more likely to be positive towards the perceived susceptibility and severity of COVID-19 (OR 2.45; 95% CI 1.48-4.06, P<0.05), perceived benefits of vaccination, and cues to action (OR 4.36; 95% CI 2.35-8.09, and OR 5.49; 95% CI 2.84-10.61, respectively, all P<0.001), but less likely to have the perceived barriers to vaccination (OR 0.19; 95% CI 0.09-0.38; P<0.001) compared with the no acceptance group. Besides, people who had a good knowledge regarding the severity of illness were 3.37 times more likely to have identified as vaccine acceptance (OR 3.37; 95% CI 1.04-10.86, P<0.05). The demographic factors were also associated with willingness to receive the vaccine, with participants who were staff and received COVID-19 information from relatives were less likely to accept the vaccine over those who were doctors and not receiving information from relatives (OR 0.36; 95% CI 0.13-0.96, and OR 0.37; 95% CI 0.17-0.78, respectively, all P<0.05). Conclusions: A rate of willingness to get vaccinated against COVID-19 was relatively high with discrepancies between occupation, receiving information from relatives, knowledge toward the severity of illness, and the elements of Health Belief Model. The findings will provide information for the management authorities to develop relevant interventions to promote COVID-19 vaccination uptake.

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Objective: To determine the predictors of acceptance and willingness to pay (WTP) for the COVID-19 vaccine among the Indian public and to provide insights for future demand forecasts and pricing considerations. Methods: A nationwide, web-based, self-administered, cross-sectional survey was conducted from 5 to 20 October 2020. The health belief model (HBM) approach was used as a theoretical framework to assess the predictors of acceptance of and WTP for the COVID-19 vaccine. Results: Of 2 480 respondents, 2 451 completed the online survey, yielding a response rate of 98.8%. Participants who participated in the survey had diverse demographics in terms of their location, educational level, occupation type, and family income. Among 2 451 respondents, the majority (89.3%) intended to receive the COVID-19 vaccine. Respondents with high perceived benefits of COVID-19 vaccination, such as reduction in worry (OR 5.87; 95% CI 4.39-7.96) and sickness (OR 4.31; 95% CI 3.31-5.62), showed higher intention to receive the vaccine. However, respondents with a high perception of the side effects and barriers to vaccination (OR 0.36; 95% CI 0.25-0.54) and vaccine shortage (OR 0.58; 95% CI 0.41-0.81) showed lower intention to receive the vaccine. The majority (2 162, 88.21%) of respondents were willing to pay an amount of INR: 500-1 000 or USD: 6.81-13.62 for a dose of COVID-19 vaccine, with a median (Q1, Q3) of INR: 500 (500, 1 000) or USD: 6.81 (6.81, 13.62). The higher marginal WTP for the COVID-19 vaccine was influenced by advanced age, marital status, female sex, intermediate educational background, high family income, fair or poor perceived health status, and no affordable barriers. Conclusions: The majority of respondents intended to receive the COVID-19 vaccine. Healthcare interventions focusing on HBM constructs and demographic predictors associated with low intention to receive the vaccine can be effective in enhancing the coverage of the COVID-19 vaccine. The findings of this study provide guidance for the future price considerations of the COVID-19 vaccine.

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Objective: To evaluate the in-hospital outcome of moderate to severe COVID-19 patients admitted in High Dependency Unit (HDU) in relation to invasive vs. non-invasive mode of ventilation. Methods: In this study, the patients required either non-invasive [oxygen ≤10 L/min or >10 L/min through mask or nasal prongs, rebreather masks and bilevel positive airway pressure (BiPAP)] or invasive ventilation. For analysis of 30-day in hospital mortality in relation to use of different modes of oxygen, Kaplan Meier and log rank analyses were used. In the end, independent predictors of survival were determined by Cox regression analysis. Results: Invasive ventilation was required by 15.1% patients while 84.9% patients needed non-invasive ventilation. Patients with evidence of thromboembolism, high inflammatory markers and hypoxemia mainly required invasive ventilation. The 30-day in hospital mortality was 72.7% for the invasive group and 12.9% for the non-invasive group (1.8% oxygen <10 L/min, 0.9% oxygen >10 L/min, 3.6% rebreather mask and 4.5% BiPAP). The median time from hospital admission to outcome was 7 days for the invasive group and 18 days for the non-invasive group (P<0.05). Age, presence of co-morbidities, number of days requiring oxygen, rebreather, BiPAP and invasive ventilation were independent predictors of outcome. Conclusions: Invasive mechanical ventilation is associated with adverse outcomes possibly due to ventilator associated lung injury. Thus, protective non-invasive ventilation remains the necessary and safe treatment for severely hypoxic COVID-19 patients.

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Objective: To describe the prognostic and clinical profile of hospitalized patients with chikungunya virus (CHIKV) infection focusing on renal outcomes. Methods: This is a cross-sectional study including all patients with confirmed chikungunya fever (CHIKF) admitted to 3 different high-complexity hospitals in Fortaleza, Brazil between January 2016 and June 2017. Data analysis was carried out to evaluate correlation between clinical profile and outcomes. Results: Fifty-five patients were included, with a median age of 77 (IQR=21) years, and 23 (41.82%) were male. Twenty-five patients (45.45%, 25/55) developed acute kidney injury (AKI), and 15 (60.00%, 15/25) were classified as KDIGO 1, 1 (4.00%) as KDIGO 2, and 9 (36.00%) as KDIGO 3. The overall mortality was 34.54% whilst AKI-related mortality was 64.00% (16/25). Both AKI and encephalitis were associated with higher mortality. Patients who died were significantly older [82 (IQR=12) years vs. 70 (IQR= 28.75) years, P<0.001)]. In the multivariate analysis, abdominal pain was associated with an increased risk of severe AKI (OR=5.33, 95% CI=1.11–25.64, P=0.037) and AKI was an independent risk factor of death (OR=12.06, 95% CI=2.55–57.15, P=0.002). Recovery of renal function was similar among the different age groups. Conclusions: AKI is present in half of the study population and is an independent risk factor of death. Thus, renal function should be carefully monitored in hospitalized patients with CHIKV infection.

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Rationale: Dengue is the most important human arboviral disease. Neurological manifestations occur rarely in dengue. To the best of our knowledge, there is only one reported case of dengue-associated sudden sensorineural hearing loss (SSNHL) in Brazil untill now. Patient concerns: A 42-year-old man was presented to the emergency department with unconsciousness and generalized tonic-clonic seizures. Diagnosis: Dengue-associated aseptic meningitis, acute kidney injury, and SSNHL. Interventions: The patient was treated with anticonvulsants and thiamine and underwent mechanical ventilation. He received combined ceftriaxone and acyclovir, which were later switched to meropenem, acyclovir and ampicillin empirically until culture results became available. He also required hemodialysis and plasmapheresis sessions and fresh frozen plasma and buffy coat transfusions until definitive diagnosis. Outcomes: The patient was discharged after improvement of his general condition and of his blood test results, but hearing loss remained. A six-month follow-up visit showed persistent deafness. Lessons: Dengue should be included in the differential diagnosis of patients from dengue-endemic areas presenting an acute febrile disease with neurological manifestations. To the best of our knowledge, this is the second reported case of dengue-associated SSNHL, suggesting an association between dengue and development of SSNHL.

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The outbreak of coronavirus disease 2019 (COVID-19) was declared a global public health emergency on 31 January 2020. Emergency medicine procedures in Emergency Department should be optimized to cope with the current COVID-19 pandemic by providing subspecialty services, reducing the spread of nosocomial infections, and promoting its capabilities to handle emerging diseases. Thus, the Chinese Society of Emergency Medicine and Wuhan Society of Emergency Medicine drafted this consensus together to address concerns of medical staffs who work in Emergency Department. Based on in-depth review of COVID-19 diagnosis and treatment plans, literatures, as well as management approval, this consensus proposes recommendations for improving the rationalization and efficiency of emergency processes, reducing the risk of nosocomial infections, preventing hospital viral transmission, and ensuring patient safety.

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