caption: The image shows a close up of a piece of paper with a black and white image of a cell, which appears to be a photo of cytomegalovirus. The cell is composed of a variety of cells, each with its own unique structure and color. The cells are arranged in a pattern, with some of them overlapping each other, and the colors range from light blue to dark blue. The background of the image is a light gray, giving the cell a stark contrast.