What are the three types of transmission-based precautions?

The three types are contact precautions, droplet precautions, and airborne precautions. Contact precautions require gown and gloves for diseases spread by direct or indirect contact, such as MRSA, C. difficile, and scabies. Droplet precautions require a surgical mask within six feet for diseases spread by large respiratory droplets, such as influenza, pertussis, and meningococcal meningitis. Airborne precautions require an N95 respirator and a negative pressure room for diseases spread by tiny airborne particles, such as tuberculosis, measles, and varicella.