What counts as a hospital-acquired infection?
What counts as a hospital-acquired infection?
A hospital-acquired infection, or HAI, is an infection linked to care in a hospital or healthcare setting and not already present or incubating when the patient was admitted. Symptoms appearing 48 hours or more after admission often raise suspicion, but timing is only a guideline.
Step-by-step lessons on Edexcel A A Level Biology Hospital-acquired infections and infection control. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.