According to the Britannica Encyclopedia, Population growth is the speed of pure enhance mixed with the effects of migration. Factors that lead to inhabitants development embody; high start rate, migration, low infant mortality, improved way of life, Education, government policy, financial progress, improved health methods and so forth.According to a report released by United Nations Department of Economics and Social Affairs (UN DESA) report, World Population Prospects: The 2017 Revision, the present world population is over 7.7 billion and its predicted to extend to about eight.
6 billion by 2030, 9.eight billion by 2050 and eleven.2 billion by 2100 respectively.Linking to the report, the rise within the world’s inhabitants progress could be noticed within the high-fertility international locations, mainly Africa and others international locations similar to India and China that are already highly populated.From 2017 to 2050, according to the report, it is anticipated that half of the world’s population progress will be mainly concentrated in 9 international locations namely India, Nigeria, the Democratic Republic of the Congo, Pakistan, Ethiopia, the United Republic of Tanzania, the United States of America, Uganda and Indonesia (ordered by their expected contribution to whole growth).
Currently China and India are the two most populous international locations on the planet making up 19% and 18% of the worldwide inhabitants. Countries with the highest population globally embrace; China having a population of about 1.four billion and India 1.three billion, USA having over 328 million, Indonesia 269 million ,Brazil, 212 million, Pakistan 204 million, Nigeria 201 million, Bangladesh167 million, Russia 143 million and Mexico 132 million amongst others. It is predicted that around 2024, the inhabitants of India is predicted to surpass that of China and Nigeria to surpass that of the United States by 2050.
Africa presently continues to expertise high charges of inhabitants development. It predicted by world meters that by 2050, the population of 26 African international locations would have double their present dimension while would have increased by at least a factor of five; these include Angola, Burundi, Democratic Republic of Congo, Malawi, Mali, Niger, Somalia, Uganda, United Republic of Tanzania and Zambia.Nigeria at present has the seventh largest inhabitants on the earth which will subsequently surpass that of the United States by about 2050 and will turn into the nation with the third largest population in the world.The inhabitants growth in Nigeria has been on the increase and about 198 million, with the urban inhabitants growing at the rate of 6.5% every year in accordance with The National Population Commission 2017 report. Which as of 2016, the World Bank estimated the population to be round 186 million.However, presently in accordance with new report launched by the he United Nation Population Fund (UNFPA) 2019 State of the World Population Report, Nigeria now has a estimated population of about 201 million.The report also revealed that Nigeria’s inhabitants grew by about 5 million folks from a population of about 195.9 million in 2018.The concentration of global population progress in creating nations presents a substantial problem to governments in implementing the 2030 Agenda for Sustainable Development, which seeks to finish poverty and starvation, expand and update health and schooling techniques, achieve gender equality, women’s empowerment and cut back inequality.The high quality of well being care providers in most creating societies of the world is basically determined by the standard of its inhabitants. Health according to the World Health Organization (WHO 1947,1948) is not merely the absence of disease or infirmity, but in addition a state of full physical, psychological and social well-being.Health is wealth so goes the popular maxima, which means good health care supply in a society is part of the inspiration on which it builds its wealth. The health system presently in Nigeria has a tree tier construction to supply well being companies to its individuals; the primary, secondary and tertiary health care (Osas,1992). The first tier known as the Primary Health Care (PHC) has been developed to offer health care services to nearly all of rural folks. The provision of care on the major tier is usually the accountability of Local Governments with help of the State Ministry of Health in accordance with the National Health Policy (Nigerian Constitution 1999). The main stage contains of three kinds of well being establishments which embody The Sub-Centre (SC), The Primary Health Centre (PHC) and The Community Health Centre. The rural well being care infrastructure has been developed to supply major well being care companies by way of a network of built-in well being and family welfare delivery systems. The second tier generally known as the secondary well being care provides specialized companies to patients referred from the first well being care stage providers via outpatient and in-patient departments of hospitals. It supplies general medical, surgical, pediatric and neighborhood health services and the state authorities is answerable for the care and performance of this degree of health care .Lastly the tertiary health care which consists of very extremely specialised providers that are normally provided by educating hospitals which normally more often than not, present look after particular illnesses mostly which the other well being care can’t adequately present. The provision and care at this stage is the solely real duty of the federal authorities.The Primary Health Care System Development (PHCSD) Agency is liable for making the availability of well being companies and its accessibility in Nigeria thus making certain that the health facilities and companies are within attain ensuring that Nigerians are protected against poor well being, building the capacity of its human resource and providing essential logistics assist for the implementation of Primary Health Care.