All of the following are true about the Herd Immunity for infectious diseases except :
Occurrence of clinical and subclinical infection in a community is responsible for herd immunity. Herd immunity is more for infections that have a subclinical phase. Ref: Park's Textbook Of Preventive And Social Medicine By K. Park, 19th Edition, Page 96; Park's Textbook Of Preventive And Social Medicine By K. Park, 18th Edition, Page 95