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Just like on Earth, there is a robust population of microbes and fungi on the International Space Station (ISS) — and a new study catalogues its exact composition.
Most of the microbes are associated with humans, particularly the bacteria Staphylococcus (26% of total bacteria isolated), Pantoea (23%) and Bacillus (11%), according to a statement on the new work. Other organisms come from specific parts of humans, such as Staphylococcus aureus (10%), which is usually found in human nasal passages and skin. Another example is Enterobacter, whose percentage was not specified in the release, which is found in the human gastrointestinal tract.
Combination - Scientists - Statement - Bacteria - Earth
While it sounds like a gross combination, the scientists noted in the statement that similar bacteria are found in mundane Earth environments such as offices, gyms and hospitals, so the space station is similar to these other "built environments" frequented by humans.
"Specific microbes in indoor spaces on Earth have been shown to impact human health, Kasthuri Venkateswaran, a senior research scientist at NASA's Jet Propulsion Laboratory and a co-author of the paper, said in the statement. "This is even more important for astronauts during spaceflight, as they have altered immunity and do not have access to the sophisticated medical interventions available on Earth."
Light - Long-duration - Missions - Venkateswaran - Types
"In light of possible future long-duration missions," Venkateswaran said, "it is important to identify the types of microorganisms that can accumulate in the unique,...
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