... risks when handling specimens, smears and cultures3. Risks of percutaneous exposures when using syringes and needles4. Bites and scratches when handling animals5. Handling of blood and other ... vaccination and use of antimicrobials, antivirals and chemo-therapeutic agents, and should take into consideration the possibility of theemergence of drug-resistant strains.The assignment of an agent ... ceilings and floors should be smooth, easy to clean, impermeable to liquidsand resistant to the chemicals and disinfectants normally used in the laboratory.Floors should be slip-resistant.3....