Add to Lightbox
Streptococcus bacteria. These gram-positive bacteria are rounded or spherical that typically form chains. Pathogenic strains of Streptococcus accounts for the high incidence of sore throats, tonsillitis and middle ear infections in children. - TEM
Dr. George Chapman/Visuals Unlimited, Inc.
all images © Visuals Unlimited
Visuals Unlimited, Inc. specializes in, microscopy, healthcare, medical, wildlife, underwater, agriculture, and science stock photography.