 Hello everyone, welcome back to a new session on dentistry and today's talk is characteristics of public health work. So how and what are the dimensions of public health work and how public health worker should behave and what are the ideas and concepts he should have in mind. So we have around eight concepts, not exactly concepts, the dimensions we can say. The first thing is a public health worker should always think about group responsibility. So recognition of group responsibility because we are serving public. So public health work must be done in areas where group responsibility is recognized. This concept first leads to quarantine and isolation procedures and later to mass preventive measures. So this is what we are seeing in Corona or COVID-19 scenario. Without group responsibility the COVID-19 disease cannot be prevented or eliminated from the that is first one group responsibility. Second one the public health work relies on team effort. So large group of people can be handled much easier as a team in institutional surroundings with systemic allocation of many procedures to properly supervised auxiliary person. So always team effort is very much important and there should be a systemic allocation of procedures. The third one is prevention of disease is the main goal. There are three reasons why because first reason is ethical that prevention of disease is even greater good in life than cure of disease. So prevention has to be the main goal of public health work and curative services. The next one is concept of medical indigents. Medical indigents means people who are not able to pay the amount because they are socially economically very deprived they belong to the lower strata of social status and constitute inability to pay large bills for medical care. The situation is chiefly found in case of chronic diseases where a person is affected with cancer he needs to pay a very hefty amount that he will not be able to afford. So in that cases the person has to suffer both financially, psychologically. So such person has to be taken care of or the public health work should always think of such people. So disease is always considered as a multi-factorial problem because public health work deals with all sort of problems involving the host population and the environment beyond the range of individual professional. So when we think of a multi-factorial we can address the disease in a holistic way. Next one is dependence on biostatistical method. The presence of a disease in an individual patient can be described on a yes or no basis but it is not possible in a population because population we have large number of people and the distribution the determinants are very much different. So to prove causation we have to apply statistical method in a public. So biostatistics is a key element in public health work. Public health worker deals with healthy as well as apparently healthy. So this is what we have seen in iceberg phenomena. So we are seeing only the tip of iceberg that is clinical patient. So we need to do active screening so that identifying the apparently healthy people and disease identifying the disease on apparently healthy people is a key element in producing a disease free community. And the last one is adaptation of programs to community culture. So whatever programs we plan the implementation but always should think about the community and its cultural background and always think of breaking the cultural barrier in such a way that the cultural sentiments are not heard because then only if the people are if people accept the programs then only we can implement it properly. So these are the characteristics of public health work. One is recognition of group responsibility, team effort, prevention, medical intentions, multifactorial position, biostatistics, healthy as well as apparently healthy that is a iceberg concept and community cultural adaptation. So I will come up with a new session on this channel. Thank you.