The document discusses topics related to infection prevention including: 1. The proper timing for prophylactic antibiotic dosing is one hour before surgery. 2. The normal wound infection rate is 2-5% and increases to over 30% with certain risk factors. 3. Eradication of Staphylococcus epidermis is difficult due to its ability to form biofilms through secretion of exoslime, which allows antibiotics to not penetrate the biofilm.