José Martín Ramírez Carrasco

Emile Guillemot

a group of people sitting on top of benches

Lawrence Krowdeed

Pau Casals

Mitchell Johnson

A large group of people standing in front of a stage

Sebastian Pociecha

a group of brown circles sitting on top of a blue surface

This 1975, digitally colorized transmission electron microscopic (TEM) image, depicted four avian infectious bronchitis virus (IBV) virions, which are Coronaviridae family members. IBV is a highly contagious pathogen, which infects poultry of all ages, affecting a number of organ systems, including the respiratory and urogenital organs. IBV possesses a helical genome, composed of non-segmented, positive-sense single-stranded RNA ((+) ssRNA). This is an enveloped virus, which means that its outermost covering is derived from the host cell membrane. The coronavirus derives its name from the fact

Ross Sneddon

Dennis Siqueira

This illustration provided a 3D graphical representation of a number of Rotavirus virions, set against a black background. Note the organism’s characteristic, wheel-like appearance, which was made visible when viewed under the electron microscope. It’s this morphology that gives the Rotavirus its name, which is derived from the Latin rota, meaning "wheel". Rotaviruses are nonenveloped, double-shelled viruses, making them quite stable in the environment.

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