Winter flu virus as a medical concept with influenza cells in the shape of a snowflake on a background of red blood cells in a human body as a symbol of seasonal outbreak of illness causing fever and illness during the cold months, stock photo

Stock image of 'Winter flu virus as a medical concept with influenza cells in the shape of a snowflake on a background of red blood cells in a human body as a symbol of seasonal outbreak of illness causing fever  and illness during the cold months.'
Published: June 10, 2016
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