A bacterial infection is primarily caused by what?

Study for the National Registry of Food Safety Professionals Exam. Use flashcards and multiple choice questions, with hints and explanations for each question. Prepare thoroughly for your certification!

A bacterial infection is primarily caused by consuming live bacteria that grow in the body. This occurs when harmful bacteria enter the body, often through contaminated food or water, and begin to multiply. Once inside, these bacteria can disrupt normal bodily functions, leading to illness.

The context of this answer emphasizes the role of live bacteria in causing an infection, which is critical in understanding food safety and hygiene practices. When food is not prepared or stored properly, bacteria such as Salmonella, E. coli, or Listeria can proliferate. If ingested, these pathogens can establish themselves in the host’s gastrointestinal tract, leading to symptoms of foodborne illness.

The other choices highlight different mechanisms related to pathogens, but they do not accurately define how bacterial infections specifically occur. A virus surviving on a counter pertains to viral transmission rather than bacterial, consuming a toxin refers to intoxication rather than infection, and parasites are a different category of pathogens entirely, indicating a misunderstanding of the nature of bacterial infections.

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