Air Quality Alerts are available for most geographic areas in New England. Note that those areas in New England not covered by Air Quality Alerts do not generally experience unhealthy air quality.
Definition of disease. 1  1 obsolete : trouble. 2  2 : a condition of the living animal or plant body or of one of its parts that impairs normal functioning and is typically manifested by distinguishing signs and symptoms : sickness, malady infectious diseases a rare genetic disease heart disease.
Medical Definition of INFECTIOUS DISEASE. : a disease caused by the entrance into the body of organisms (as bacteria, protozoans, fungi, or viruses) which grow and multiply thereâsee communicable disease, contagious disease.