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ON THE COVER:

Streptococcus bacterium dividing. Colored scanning electron micrograph (SEM) of a Streptococcus bacterium (pink) undergoing nuclear division (mitosis) to produce two daughter cells. Streptococci are spherical Gram-positive bacteria. They are part of the normal human bacterial flora and are carried by many without causing infection. However, certain species are responsible for causing meningitis, bacterial pneumonia, endocarditis, erysipelas (a skin infection) and necrotizing fasciitis ('flesh-eating' bacterial infections).

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See related article:

“Clinical and Laboratory Features of Streptococcus salivarius Meningitis: A Case Report and Literature Review” pp.15–25.