Background/Objectives: Urinary tract infections (UTIs) represent a significant public health challenge, with Escherichia coli being the primary causative pathogen. The rise in antimicrobial resistance (AMR), further intensified by shifts in antibiotic prescribing practices during and after the COVID-19 pandemic, poses substantial difficulties in treatment optimization and clinical management. Methods: This retrospective study analyzed 644 E. coli strains from urine samples collected in a southeastern Romanian hospital during two periods: pre-pandemic (2018–2019, N = 361) and post-pandemic (2023–2024, N = 283). Antimicrobial susceptibility was assessed using the VITEK automated system for key antibiotic classes. Results: A significant increase in fluoroquinolone resistance was observed, especially for ciprofloxacin (p = 0.02), alongside rising ceftriaxone resistance (p = 0.004), suggesting the spread of ESBL-producing strains. Resistance to trimethoprim/sulfamethoxazole, ampicillin, and amoxicillin/clavulanic acid remained high, limiting their empirical use. Carbapenem resistance was low (p > 0.1), while nitrofurantoin and fosfomycin retained high efficacy (p = 0.26 and p = 0.64). Conclusions: The post-pandemic period showed a concerning rise in resistance to fluoroquinolones and third-generation cephalosporins, highlighting the need for stricter antimicrobial stewardship. Carbapenems remain effective for severe infections, while nitrofurantoin and fosfomycin are reliable first-line options for uncomplicated UTIs. Continuous AMR surveillance is essential to optimize treatment and curb multidrug-resistant strains.

Hyperglycemia significantly initiates oxidative stress in children diagnosed with type 1 diabetes (T1DM). This study investigates the differences in oxidative stress markers between pediatric patients with T1DM and those experiencing transient hyperglycemia. In this case–control study, 42 children diagnosed with T1DM, according to ISPAD (International Society for Pediatric and Adolescent Diabetes), and their healthy counterparts, aged 1–6 years old, participated. Blood samples were analyzed for oxidative stress biomarkers such as malondialdehyde (MDA) and glutathione peroxidase (GPx). There was no statistically significant association found between the A1c % and age, BMI, and insulin dose (p > 0.05). A negative correlation was found between Se, Zn, cholesterol, GSH, and GPx (p < 0.05), as well as a statistically meaningful positive correlation with the A1c % (p < 0.001). GSH exhibited a statistically significant negative correlation (p < 0.001) with diabetic group. In comparison to control participants, plasma MDA levels (1.3 ± 0.36 µmol/L) had already increased significantly. MDA did correlate in a diabetic group with triglyceride levels (p > 0.0001) or total cholesterol. In the healthy group, the cholesterol levels were normal and apparently did not influence MDA levels. The oxidative state remained unchanged in the healthy participants experiencing temporary hyperglycemia, even though T1DM altered the link between selenium, zinc, and lipids.

The world has changed forever as a result of the COVID-19 pandemic. Antimicrobial resistance is a primary global health concern that places a significant financial and health burden on nations. Patients with Campylobacter-caused infections were the subject of the retrospective investigation. The data show that children aged 1–6 are the most commonly affected by Campylobacter enteritis. Resistance levels fluctuated over the course of the two periods. Nine isolates were sensitive to macrolides, and only one was responsive to tetracycline, which indicated inadequate sensitivity across all classes throughout the pandemic. This pattern raises serious concerns about the potential impact on public health. Tetracyclines and fluoroquinolones rank highest in terms of bacterial resistance. Regardless of the species, macrolides remain a practical and sufficient treatment for Campylobacter enteritis. Reassurance is still provided by much lower numbers in the post-pandemic period. There is no evidence to support the alarming claims made in the international literature about macrolides in Romania.

Background/Objectives: Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. Identifying reliable biomarkers that reflect the underlying immune pathophysiology of sepsis and support early risk stratification remains a major clinical priority. This prospective study aimed to evaluate the prognostic value of interleukin-6 (IL-6) measured at ICU admission in patients with sepsis and septic shock. Methods: This prospective observational study included adult patients with sepsis and septic shock admitted to the Intensive Care Unit (ICU) of the Clinical Hospital of Infectious Diseases Constanța between 2021 and 2025. Receiver operating characteristic (ROC) curve analysis with DeLong comparisons, Kaplan–Meier survival analysis, and Cox proportional hazards regression modeling were performed to assess the association between baseline IL-6 levels, in-hospital mortality, and time to death. Results: Among the analyzed biomarkers, IL-6 demonstrated the highest discriminatory performance for in-hospital mortality (AUC = 0.956; 95% CI: 0.893–0.987; p < 0.0001). The optimal cut-off value (>135.14 pg/mL) yielded a sensitivity of 87.65% and specificity of 92.86% (Youden index = 0.805). However, despite this excellent discrimination between survivors and non-survivors, baseline IL-6 levels were not significantly associated with time-to-death in Cox proportional hazards regression analysis. Conclusions: Admission IL-6 showed excellent discriminatory performance for mortality risk stratification but was not associated with survival duration in time-to-event analyses. These findings suggest that IL-6 should be interpreted primarily as an early risk stratification biomarker rather than a predictor of survival duration in patients with sepsis.