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AIM: To demonstrate the importance of an integrated viral surveillance to tackle the changing epidemiology and the continuing disease burden of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). BACKGROUND: International institutions such as European Centre for Disease Prevention and Control provide guidance for integrated surveillance of respiratory viruses. However, SARS-CoV-2 is not an integral part of sentinel influenza like illness and severe acute respiratory infections surveillance in Türkiye. METHODS: We utilized the database from the Global Influenza Hospital Surveillance Network project in Türkiye between November 1st, 2022 and May 31st, 2024 over two seasons. Patients admitted to five hospitals with influenza like illness symptoms in the last 7 days and stayed overnight in the hospital were screened three days a week and swabbed within 72 hours of admission in a standardized year around surveillance methodology. An oligonucleotide panel analysis was utilized during November 1st 2022 to October 31st 2023 and multiplex PCR was utilized thereafter to test for influenza A and B, SARS-CoV-2 and respiratory syncytial virus (RSV). RESULTS: A total of 984 inpatients were enrolled and 969 of them, 724 (75%) of whom were adults, had valid laboratory results. RSV was the most prevalent pathogen detected in 4.9% of the samples, followed by SARS-CoV-2 (4.8%) and influenza A and B (3%). CONCLUSIONS: SARS-CoV-2 is circulating and resulting in hospital admissions among all age groups adding onto the influenza and RSV peaks. Integrated respiratory virus surveillance is crucial to guide informed public health policies and effective vaccination programs.

The clinical manifestations of SARS-CoV-2 infection mainly involve the respiratory system. However, there is increasing evidence that this virus can affect other organs, causing a wide range of clinical symptoms. This is the report of a 40-day-old patient who presented with sepsis and had no risk factors other than SARS-CoV-2 infection, whose radiological findings were compatible with cerebral sinus vein thrombosis.