Completar Frases Human healthVersión en línea Fill in the blanks por Kasthuri Subramaniam 1 diseases CONTACT water pathogens abnormal disease stress host discomfort VECTORS sanitation infected A is an condition of body or mind that causes , difficulty to function or to an individual . Infectious are spread by . Transmitted from an person ( ) to another person through and mediums such as WATER , AIR , and . Infection through usually happens in areas with inadequate water supply and poor .