Can you explain the difference between biosafety levels 1-4 ?
Biosafety Levels (BSL) are guidelines for handling hazardous biological agents, with four levels of increasing risk and safety measures. BSL-1 is for non-pathogenic organisms, BSL-2 for moderate risk agents, BSL-3 for serious disease-causing agents, and BSL-4 for highly dangerous agents like Ebola. Differences include lab design, access control, safety equipment, and procedures to protect personnel and the environment.