Health care is a state sphere that organizes and ensures the protection of public health, political, economic, social, legal, scientific, medical, sanitary and hygienic, aimed at preserving and strengthening the physical and mental health of each person, maintaining healthy life and providing medical care in case of deterioration of health - this is a complex of anti-epidemic and cultural and household measures. Special social institutions are being created for this purpose. A healthcare system is an organization created to meet the medical needs of target populations. According to the World Health Organization, it requires a financing mechanism, a well-trained and adequately paid workforce, reliable information on which decisions and policies are based, and medical institutions that should provide quality medicines and technologies. Public health is an integral element of international development.An effective healthcare system can make a significant contribution to the country's economy, its development and industrialization. Healthcare has traditionally been considered an important factor determining the overall physical and mental health and well-being of people around the world. An example of this is the global eradication of smallpox in 1980, which WHO declared the first disease in human history to be completely eradicated through deliberate medical intervention.