Agent, Host and Environment Interaction

Agent, Host and Environment Interaction Agent factors are causes of disease in the form of biological, physical, chemical. Host factors are personal characteristics, behavior, genetic and immunologic predisposition. Environmental factors are external circumstances (other than agents) that influence the disease process, whether physical, biological or social.The balance of the epidemiological triangle above affects health status, this applies to both infectious and non-communicable diseases. The interaction between pathogens and the environment is determined by the environment where pathogens are directly influenced by environmental conditions that can arise at the beginning of the emergence of a disease. Examples include the stability of plant vitamins in cold rooms, the survival of bacteria against sunlight, and the evaporation of toxic chemicals during heating. The reciprocal relationship between host and environment is manifested as a state where humans are directly influenced by the environment at pre-morbid stages. For example, cold air, rain, and habits of making and preparing food. Another interaction between host and pathogen is determined by the fact that the pathogen survives, reproduces, and can stimulate a response in humans in the form of disease symptoms. For example: symptoms of fever, physiological changes in the body, formation of immunity, or other body defense mechanisms. The interactions that occur can include complete recovery, disability, disability, or death. The interaction of disease agents, hosts and the environment can be seen in the situation where disease agents, humans and the environment simultaneously influence and aggravate each other, making it easier for disease agents either directly or indirectly to enter the human body The existence of a broad/global climate (global warming) can increase the acceleration of mosquito proliferation, also increase the population, be used as a breeding ground for various diseases, be used as a fertile breeding ground for viruses, and as a means of genetic engineering experiments. The above are various factors that can play a role in the emergence of regional environmental diseases,, for example airborne diseases, waterborne diseases, vector-borne diseases, food-borne diseases, including ecology. Population mobilization allows the “import and export” of diseases that no longer recognize administrative boundaries and the ability of pathogenic microorganisms to change their properties over time. Factors that can weaken the body's ability to fight disease, because various environmental infections occur. The Role of Epidemiology in the Work Environment Epidemiology is widely used by occupational health and safety professionals to support the management of industry or government agencies related to K3 activities.Information analysis is needed to understand or recognize occupational health and safety (K3) hazards and risks. This is in line with epidemiological activities, namely (1) looking at the magnitude of the problem; (2) taking into account bonds due to consequences;(3) equalize the conditions before and after the intervention; and (4) carrying out assessments.Often a disease arises not from one factor but rather a series of causal relationships between many factors that interact with each other so that epidemiology does not only focus on data regarding morbidity and morality, but also that data is closely related to the causal factors that follow. Several examples of cases of industrial workers have been reported to suffer from cancer, where we know that one of the factors causing the increase in cancer incidence is due to exposure to pollutionindustry and toxic chemicals at work sites. It is important to take treatment and preventive measures for groups at risk of being affected when the causal factors are known. The following are potential safety and health hazards in the work environment listed in the International Labor Organization