It is vitally important for both you and your casualty that you do all you can to prevent cross infection. The next two puzzles will help you to remember how.
Fill in all the gaps, then press "Check" to check your answers.
If you need help, use the "[?]" button to reveal the first letter of the word and the "Hint" button at the bottom of the page to insert additional letters.
Note, you will lose points each time you use the "[?]" & "Hint" buttons!