"Contaminated (Infected)" refers to the presence of harmful substances or pathogens in an environment, object, or organism. This can occur through various means, such as exposure to bacteria, viruses, or chemicals. Contamination can lead to health risks, making it essential to identify and address the source of infection to prevent further spread. Infection typically occurs when pathogens enter the body and multiply, causing illness. Common examples include bacterial infections, viral infections, and fungal infections. Proper hygiene practices, such as handwashing and sanitization, are crucial in reducing the risk of contamination and infection in both personal and public settings.