Health communication is key strategy in public health. Communication will be effective if there are elements such as the communicator as a messenger, communicant or recipient of the message, the message itself as well as the channel or medium used as a means of delivering a message
Community empowerment or a healthy community development is one of strategy in public health to achieve the highest degree of health. These process uses the potential that exists in the community.
World AIDS Day is regularly commemorated every December 1. This memorial began in 1988 with the aim of raising public awareness about infectious disease caused by a virus is Human Immunodeficiency Virus.
Environmental health is one field of public health that takes into account environmental aspects in relation to health issues.
Health promotion has new challenges in COVID-19 pandemic. They have to tell all society about COVID-19 prevention such as are washing hands, maintaining distance and wearing masks even without meeting face to face.
The diffusion theory of innovation was first introduced in 1962 by Everett Rogers. This theory (in health promotion) defines as a process in which an innovation is communicated through certain channels over time among the members of a social system.
So many theory explained about behavioral changes. In WHO models, there are four factors influences behavior. From thought and feeling, personal refecences until culture are believed as the factors.