摘要
Climate change may strongly modify the habitat conditions for many woody plant species. Some species could disappear from their natural habitats and become endangered, while others could adapt well to the changed environmental conditions and continue to survive successfully or even proliferate more easily. A similar process can occur within the artificial urban environment as the hitherto popularly planted urban trees may suffer from the extremities of the urban climate. However, among the planted taxa, there are species that spread spontaneously and appear as weeds in extensively managed gardens. In our study, we evaluated the native and non-native species involved in spontaneous spreading in the institutional garden of Buda Arboretum (Budapest) during the COVID-19 period in 2020–2021 when entry was prohibited, and maintenance went on in a restricted, minimal level. We investigated the correlation between spontaneously settling and planted individuals, and then performed multivariate analyses for native and non-native spreading plants for spatial and quantitative data. During our studies, we observed the spontaneous spreading of 114 woody species, of which 38 are native and 76 are non-native. Taking the total number of individuals into account, we found that, in addition to the 2653 woody species planted, a further 7087 spontaneously emerged weeds developed, which creates an additional task in the maintenance. © 2023 by the authors.
摘要
BackgroundThe approved COVID-19 vaccines showed clear safety and efficacy in reduction of severe SARS-CoV-2 disease. Patients with idiopathic inflammatory myopathies (IIM) were not well represented in these vaccine trials and there are limited data in the literature about development of confirmed disease flare after COVID-19 vaccination.ObjectivesTo evaluate frequency, features and outcome of disease relapses in patients with IIM following SARS–CoV-2 vaccination.MethodsA cohort of 176 IIM patients (mean age:57.6 years, 117 females, 59 males, 106 PM, 70 DM) were interviewed after the 3rd wave of COVID-19 pandemic and prospectively followed. Relapses were determined using the IMACS disease state criteria, outcome of the flares with myositis response criteria, calculating the total improvement score (TIS).ResultsA total of 146 (82.9%) patients received vaccination and 17/146 (11.6%) patients had relapse within 3 months and 13/146 (8.9%) patients within one month. The relapse rate of unvaccinated patients (1/30;3.3%) was not significantly different (p>0.1). No fatal flare has been observed. Three months after the post-vaccination relapses, 70.6% of the patients (12/17) achieved improvement of disease activity (average TIS score:30±15.81;7 minor, 5 moderate and 0 major improvement). Six months after flares improvement was detected in 14/16 (87.5%) of relapsed patients (average TIS score: 43±20.17;3 minimal, 7 moderate and 4 major). Forward stepwise logistic regression analysis revealed that the active state of myositis at time of injection (p<0.0001;OR: 31.2 CI: 9.0 – 108) and the application of BNT162b2 vaccination (p=0.026;OR: 4.06 CI: 1.1 – 14.7) were significantly associated with the occurrence of relapse.ConclusionMinority of the vaccinated IIM patients had confirmed disease flare after COVID-19 vaccination and majority of the relapses improved after individualized treatment. Active disease state at the time of vaccination probably contributes to the increased risk of post vaccination myositis flare.REFERENCES:NIL.Acknowledgements:NIL.Disclosure of InterestsNone Declared.
摘要
Background. Pandemic caused by severe acute respiratory syndrome coronavirus 2 (COVID19) raises a smash barrier for clinicians and patients since 2 years. Limited information is available on disease course after COVID19 infection or vaccination in patients with idiopathic inflammatory myopathies (IIM). Objective(s): The primary goals of the current research were to assess frequency and outcome of COVID19 disease and to determine the vaccination rate and effect in our IIM cohort. Secondary objectives were to search for risk factors of infection, predictive factors of hospitalization and to assess incidence of pots-vaccination adverse events and breakthrough infections. Methods. We identified the confirmed COVID19 positive patients and assessed disease course and outcome on 01/06/2021 in our cohort then patients were prospectively followed. Incidence and complications of infection and vaccination were determined by questionnaires and using the database. Anti-SARS-CoV-2 spike protein electrochemiluminescent immunoassay has been used to assess seroconversion. Disease activity was determined by physician global activity. Results. A total of 176 patients were screened and 101 participated in the study. By 01/06/2021, the COVID infection rate was 34.7%, which was significantly higher than the national prevalence at that time (8.2%). A third of these infections occurred asymptomatically or mild, but 20% of the infected patients were hospitalized, one patient died. Longer disease duration (8.67 vs. 17.87 years;p=0.003) and higher incidence of anti-Jo-1 antibody (57% vs. 10%;p=0.018) were significantly associated with hospitalization. All patients became seropositive after COVID19 infection regardless of immunosuppressive therapy or symptoms severity, meanwhile 72.3% of patients became seropositive after vaccination. Different vaccines induced various titer of antibody against the spike protein. Significantly higher antibody titers was detected after Pfizer-BioNTech (177.1 U / ml vs. 81.1 U / ml;p=0.001) and numerically lower ones after AstraZeneca (45.05 U/ml vs. 126.93 U/ml p=0.054) vaccination compared to others. Patients receiving steroid therapy had significantly decreased post-vaccination antibody response compared to those without steroid treatment (94.03 U/ml vs. 165.6 U/ ml;p=0.008). We did not found short term vaccine related major adverse events. Long term data by 15/02/2022 revealed more infections (42.57%), where anti-Jo1 positivity still showed significant association with hospitalization (50% vs. 9%;p=0.0103). Breakthrough infection was detected in 9,25 % of the vaccinated patients, which was significantly more often after Astra Zeneca vaccination (40 % vs. 7%, p=0.017). All the fatal (n=3) COVID infections occurred in patients with seronegativity to anti-spike protein regardless vaccination. We identified 7,4 % post vaccination disease relapse needing therapy changes and 24,7% new autoantibody positivity. Conclusions. Based on our results, myositis may be associated with an increased risk of COVID19 disease. Independent risk factor for hospitalization for unvaccinated people is anti-Jo1 positivity. Anti-SARS-CoV2 vaccines are safe, tolerable, could prevent complicated infections and strongly recommended for IIM population. Further investigation is required to assess clinical significance of post-vaccination disease flare.
摘要
Objective: The objectives of this study were to measure the global impact of the pandemic on the volumes for intravenous thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with two control 4-month periods. Background: The COVID-19 pandemic led to widespread repercussions on the delivery of health care worldwide. Design/Methods: We conducted a cross-sectional, observational, retrospective study across 6 continents, 70 countries, and 457 stroke centers. Diagnoses were identified by ICD-10 codes and/or classifications in stroke center databases. Results: There were 91,373 stroke admissions in the 4 months immediately before compared to 80,894 admissions during the pandemic months, representing an 11.5% (95%CI,-11.7 to-11.3, p<0.0001) decline. There were 13,334 IVT therapies in the 4 months preceding compared to 11,570 procedures during the pandemic, representing a 13.2% (95%CI,-13.8 to-12.7, p<0.0001) drop. Interfacility IVT transfers decreased from 1,337 to 1,178, or an 11.9% decrease (95%CI,-13.7 to-10.3, p=0.001). There were greater declines in primary compared to comprehensive stroke centers (CSC) for stroke hospitalizations (-17.3% vs-10.3%, p<0.0001) and IVT (-15.5% vs-12.6%, p=0.0001). Recovery of stroke hospitalization volume (9.5%, 95%CI 9.2-9.8, p<0.0001) was noted over the two later (May, June) versus the two earlier (March, April) months of the pandemic, with greater recovery in hospitals with lower COVID-19 hospitalization volume, high volume stroke center, and CSC. There was a 1.48% stroke rate across 119,967 COVID-19 hospitalizations. SARS-CoV-2 infection was noted in 3.3% (1,722/52,026) of all stroke admissions. Conclusions: The COVID-19 pandemic was associated with a global decline in the volume of stroke hospitalizations, IVT, and interfacility IVT transfers. Primary stroke centers and centers with higher COVID19 inpatient volumes experienced steeper declines. Recovery of stroke hospitalization was noted in the later pandemic months, with greater recovery in hospitals with lower COVID-19 hospitalizations, high volume stroke centers, and CSCs.