a blue and yellow substance with yellow dots

Produced by the National Institute of Allergy and Infectious Diseases (NIAID), this highly magnified, digitally colorized scanning electron microscopic (SEM) image, revealed ultrastructural details at the site of interaction of numerous yellow colored, Middle East respiratory syndrome coronavirus (MERS-CoV) viral particles, located on the surface of a Vero E6 cell, which had been colorized blue.