Final answer:
Biofilms are bacterial communities that exhibit high resistance to antibiotics and disinfectants, causing chronic infections in humans.
Explanation:
Biofilms are communities of bacteria that make them more resistant to antibiotics and disinfectants compared to individual bacteria. The sticky substance in biofilms creates a protective environment that hinders the penetration of chemicals, making biofilm bacteria tougher. They are implicated in various infections like tuberculosis, Staphylococcus infections, and Legionnaires' disease due to their resilience.
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