_________ is equipment that blocks entry of an organism into the body.

_________ is equipment that blocks entry of an organism into the body.

• A. Personal protective equipment
• B. Sterilizer
• C. Disinfectant
• D. Vaccine

Answer: (A)

Blocking entry of an organism into the body is achieved by equipment that acts as a barrier between the person and potential pathogens. Personal protective equipment provides that physical barrier at points most likely for exposure—eyes, nose, mouth, and skin—reducing the chance that microbes reach mucous membranes or broken skin. When worn and fitted correctly, gloves, masks, goggles or face shields, gowns, and other PPE lower the risk of infection by preventing contact, droplets, splashes, or aerosols from reaching the body. Sterilizers and disinfectants work to kill or reduce microbes on surfaces or instruments, not to create a wearer barrier. Vaccines train the immune system to respond to pathogens but do not physically block entry at the point of contact. So the equipment that blocks entry is personal protective equipment.

Blocking entry of an organism into the body is achieved by equipment that acts as a barrier between the person and potential pathogens. Personal protective equipment provides that physical barrier at points most likely for exposure—eyes, nose, mouth, and skin—reducing the chance that microbes reach mucous membranes or broken skin. When worn and fitted correctly, gloves, masks, goggles or face shields, gowns, and other PPE lower the risk of infection by preventing contact, droplets, splashes, or aerosols from reaching the body. Sterilizers and disinfectants work to kill or reduce microbes on surfaces or instruments, not to create a wearer barrier. Vaccines train the immune system to respond to pathogens but do not physically block entry at the point of contact. So the equipment that blocks entry is personal protective equipment.