<prompt> Endemicity of a disease means:Occurs clearly in excess of normal expectancyIs constantly present in a populationExhibits seasonal patternIs prevalent among animals  <response>: Endemic Is the constant presence of a disease agent in a defined geographical area ; refers to usual or expected frequency of a disease in a population. For instance, common cold is endemic because somebody always has one. Endemic diseases in India are : Measles, mumps, rubella, chicken pox, peussis, TB, HIV, Cancers, diabetes, hypeension etc. Epidemics can arise from uncontrolled endemics also. 