Changes in Knowledge and Practices Regarding Tick-Borne Encephalitis Among Infectious Disease Physicians in Romania: A Repeated Cross-Sectional Survey

Background/Objectives: Tick-borne encephalitis virus (TBEV) is an emerging vector-borne pathogen in Europe, yet it may be potentially underrecognized in countries reporting few clinical cases. Despite the small number of reported TBE cases, evidence of TBEV circulation in Romania has increased in recent years. Awareness and clinical practices among infectious disease physicians remain insufficiently characterized. This study evaluated changes in knowledge and clinical practices regarding TBEV infection among infectious disease physicians in Romania between 2019 and 2025, following the introduction of TBE vaccination. Methods: We conducted a repeated cross-sectional survey using the same questionnaire in two independent cohorts of infectious disease physicians in Romania (2019, n = 164; 2025 n = 140). Knowledge of tick-borne diseases, TBEV global and local epidemiology, diagnosis, and clinical practice was evaluated and compared. Results: Recognition of TBEV cases in Romania increased significantly from 95/164 (57.9%) in 2019 to 108/140 (77.1%) in 2025 (p = 0.004), while awareness of vaccination as a preventive measure increased from 37.8% to 65.7% (p < 0.001). However, increased awareness did not translate into increased diagnostic testing: TBEV testing remained limited (25.6% in 2019 vs. 20.0% in 2025) and lack of access to serological testing was the most frequently reported diagnostic barrier (65.5% in 2019 vs. 82.1% in 2025). Awareness of alimentary transmission through unpasteurized dairy products also remained limited. Conclusions: Romanian infectious disease physicians’ awareness regarding TBEV improved between 2019 and 2025, but diagnostic practice did not improve accordingly. The persistent gap between awareness and testing capacity may contribute to under recognition of TBE and highlights the need to strengthen diagnostic access alongside physician education and vaccination strategies.