Emma is studying how diseases spread in her biology class. She learns that the chain of infection includes several links. How many links are there in the chain of infection?

Avery is caring for a friend who has the flu. Which is an example of a mode of transmission in this situation?

Emma is a nurse at a care facility. She is reviewing safety protocols and wonders when she should use standard precautions. What should Emma do?

James is about to care for a patient in the hospital. What is the single most important way for James to prevent infection?

Abigail has just finished gardening and her hands are covered in dirt. What should she use to clean her hands?

Aria is starting a new job at a construction site and is told she must always wear PPE for safety. PPE stands for:

Abigail is preparing to enter an isolation room in the hospital. Which PPE should she put on first?

Olivia is finishing her shift in the hospital and needs to remove her personal protective equipment (PPE) safely. Which PPE should Olivia remove first?

Nora is helping clean up after a minor accident in the school gym. She wants to know which bodily fluid could contain bloodborne pathogens. Which one should she be most careful with?

Emma is a healthcare worker who accidentally gets pricked by a used needle while treating a patient. She is concerned about contracting a bloodborne pathogen. Which disease should Emma be most concerned about?

Daniel finishes giving an injection and needs to dispose of the used needle. Sharps should be disposed of:

Abigail is working in a hospital and needs to handle soiled linens. What should she do?

Aria has just finished providing care to a resident and is removing her PPE. What should Aria do next?

Samuel is working in a hospital and wants to prevent the spread of infection. Which action breaks the chain of infection?