The study conducted by a team from Arizona State University found that the bacterium Salmonella typhimurium exhibited enhanced virulence when sent aboard the space shuttle, demonstrating that exposure to microgravity alters its protein behavior, making it more infectious.
Researchers highlighted how the microgravity of space reduces the friction of liquid media, enabling bacteria to behave as if they were within a host, thus increasing their infectivity and revealing the clever adaptability of microorganisms.
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