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Middle-aged Caucasian man with gray scarf blowing nose into tissue, showing symptoms of cold or flu against neutral gray background.

Caucasian man with curly hair blowing nose into tissue at home, suffering from cold or flu symptoms in warm evening light.

Middle-aged Caucasian man with beard blowing nose into tissue while looking through rainy window with autumn colors in background, depicting seasonal illness.

Middle-aged Caucasian man with beard blowing nose into tissue, showing signs of illness in dimly lit home environment. Concept of seasonal flu, cold, or allergies.

Glowing translucent human lungs with respiratory system visualization surrounded by virus particles in dark blue background for medical education.

Young caucasian girl in winter coat blowing nose with tissue paper, virus cell floating nearby against blurred holiday lights background, health concept.

Young Caucasian girl with pigtails wearing white sweater sneezing into tissue, showing cold and flu symptoms against light gray background. For health and medical concepts.

Young girl with pigtails wearing gray sweater sneezing into tissue against blue background, depicting cold and flu symptoms in children.

Young girl with pigtails wearing brown sweater blowing nose into tissue while sitting on couch, showing cold and flu symptoms during illness at home.

Young woman with sore throat touching neck with red inflammation indicator. Concept for throat pain, tonsillitis, or respiratory illness.

Digital visualization of human lungs with glowing virus particles and medical data on tablet screen held by healthcare professional in clinical setting.

Digital visualization of human lungs surrounded by virus particles on dark background, showing respiratory system and infectious disease concept in medical science.

Young boy wearing blue sweater blowing nose into tissue with coronavirus cell structure visualization in foreground, medical education and health awareness concept.

Sick Caucasian man wrapped in blanket drinking hot tea while sitting on couch at home, treating cold and flu symptoms during winter season.

Young Asian man experiencing severe sore throat pain while lying in bed, holding neck with red inflammation highlight showing discomfort and illness symptoms.

Middle-aged Caucasian woman experiencing sore throat pain while resting in bed at home, highlighting common cold or flu symptoms for health concepts.

Young Asian woman holding tissue to nose, showing symptoms of seasonal allergies or cold against soft blue background. Healthcare concept.

Young Asian woman in yellow sweater blowing nose with tissue paper while sitting on couch next to plush teddy bear, showing cold and flu symptoms on beige background.

Young Asian man sneezing into tissue, wearing warm scarf and coat against evening bokeh lights background, depicting cold and flu season symptoms.

Asian senior woman wearing protective face mask sneezing, surrounded by floating virus particles in blue winter background. Healthcare concept during flu season.

Holographic lungs floating above open hands representing respiratory health, medical care, and pulmonary system protection in healthcare concept.

Human hands holding glowing blue lungs with bronchial tree structure against dark background with bokeh lights for medical healthcare concepts.

Close-up of person holding tissue to nose, showing signs of nasal congestion, cold or allergy symptoms against light background, medical health concept.

Translucent blue human lungs with glowing orange inflammation areas showing disease progression, medical visualization on black background for healthcare education.