Migration might be seasonal, ranging from a period of one year to two years or it might even be permanent. There are countless of reasons why immigrants choose to migrate from their point of origin to point of destination; people would naturally move from areas of poverty or areas of poor prospect …
Trypanosomiasis in Humans or African sleeping sickness is caused by Trypanosoma species parasites that are spread by Tsetse fly of the genus Glossina. Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense are two protozoans that serve as causative agents of sleeping sickness in Humans. Trypanosoma species are collectively called Trypanosomes. What is sleeping sickness? Trypanosomiasis is commonly called African …
Resources in a wider sense may be grouped into renewable or non-renewable resource. It is renewable when we talk of crops and other forest resources which may take a short period of time to grow and be harvested while the non- renewable resources are those things that take millions of years to …
Trypanosoma causes two types of diseases that are commonly known as Trypanosomiasis; there is African Trypanosomiasis and American Trypanosomiasis that are both caused by Trypanosoma parasites but from different species. Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense cause African trypanosomiasis in Humans (it is also named sleeping sickness) whereas Trypanosoma cruzi causes Chagas disease or American …
What is Polio? Polio or Poliomyelitis or Infantile Paralysis is an infectious disease caused by a virus called Poliovirus that mostly affects children but may occur in unvaccinated adults. The poliovirus can damage cells in the nervous system leading to paralysis but this only occurs in about 2% of those infected with it. Children …
Poliovirus is an RNA virus which belongs to the Picornaviridae Family of enteroviruses (Entrovirus is the scientific name for any virus that is transmitted through the intestine). The disease caused by Poliovirus is called Poliomyelitis, Polio or Infantile Paralysis. Poliovirus History Poliovirus disease (Polio) was first described in Britain in 1789 by Michael …
Natural resources are referred to as biophysical materials that satisfy human wants and provide direct inputs to human well-being. They are widely scattered all over the earth and are unevenly distributed, including the flora and fauna, the mineral deposits, water bodies, consisting of sea, river, ocean streams and lake, weather and climate, …
Polio vaccines are named after the founders; the Inactivated Polio Vaccine (IPV) is named Salk vaccine after Jonas Salk whereas the Oral Polio Vaccine (OPV) is named Sabin vaccine after Albert B. Sabin. These two vaccines are given to prevent Polio as there is currently no cure for the disease; they do this by inducing the body to …