10,000 germ species live in and on healthy people |
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 at left, undated handout image provided by the national institute of allergy and infectious diseases (niaid) shows a clump of staphylococcus epidermidis bacteria (green) in the extracellular matrix, which connects cells and tissue, taken with a scanning electron microscope, showing. |
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Slideshow
Pa. building collapses, people believed trapped
Fire chief: search almost complete in Oklahoma after tornado
Explosions go off at Boston Marathon
Pope recalls 'joy,' difficulties in final audience
Heavy rainfall in Athens floods roads, basements
Over 1,000 injured by meteor explosion in Russia
Coast Guard: Disabled cruise ship is moving again
Hoax call but no sign of ex-cop wanted in killings
Clinton formally resigns as secretary of state
Body of Phoenix shooter positively identified
Bulgarians celebrate Epiphany with an icy dip
Moran Graduation
Anxiety and Optimism as Kenya Prepares for March Polls
Protesters Throng Tahrir Square Against Morsi
BP to pay the largest criminal penalty.
World
Pa. building collapses, people believed trapped
Fire chief: search almost complete in Oklahoma after tornado
Pope recalls 'joy,' difficulties in final audience
Heavy rainfall in Athens floods roads, basements
Over 1,000 injured by meteor explosion in Russia
Coast Guard: Disabled cruise ship is moving again
Hoax call but no sign of ex-cop wanted in killings
BP to pay the largest criminal penalty.
World Muslims Celebrates Eid al-Adha with Huge Joy
Northeast buttons up against terrifying megastorm
Business
BP to pay the largest criminal penalty.
South Africa-Turkish businesses engage in bilateral discussions
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