Table of contents

May 2011 - Volume 66 - 5

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Colour enhanced transmission electron micrograph (TEM) of type 4 Streptococcus pneumoniae bacteria adherent to a pharyngeal epithelial cell. Belonging to the alpha group of Streptococcaceae, Streptococcus pneumoniae is a major human pathogen that causes lung infections that can develop as secondary infections which may spread to other parts of the body. There are about 100 different serotypes with a rise in antibiotic resistance. Enhancement of 5w1801. SCIENCE SOURCE / SCIENCE PHOTO LIBRARY.