Keywords
activating, anatomy, antibody, artwork, b cell, b lymphocyte, biological, biology, cell-mediated immunity, cells, communicating, computer artwork, defence, duo, human body, humoral immunity, illustration, immune, immunology, lymphocyte, microbe, microbes, microorganism, microorganisms, pair, pathogen, pathogens. white background, receptor, receptors, t cell, t lymphocyte, t-cell dependant activation, virus, viruses, wbcs, white blood cell, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u15436877