|
Gay-related Immune Deficiency
AIDS is caused by a human immunodeficiency virus (HIV), which originated in non-human primates in Central and West Africa. While various sub-groups of the virus acquired human infectivity at different times, the present pandemic had its origins in the emergence of one specific strain – HIV-1 subgroup M – in Léopoldville in the Belgian Congo (now Kinshasa in the Democratic Republic of the Congo) in the 1920s. There are two types of HIV: HIV-1 and HIV-2. HIV-1 is more virulent, easily transmitted and is the cause of the vast majority of HIV infections globally. The pandemic strain of HIV-1 is closely related to a virus found in chimpanzees of the subspecies ''Pan troglodytes troglodytes'', which live in the forests of the Central African nations of Cameroon, Equatorial Guinea, Gabon, the Republic of the Congo, and the Central African Republic. HIV-2 is less transmittable and is largely confined to West Africa, along with its closest relative, a virus of the sooty mangabey (''Ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central African Republic
The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of the Congo to the southwest, and Cameroon to the west. The Central African Republic covers a land area of about . , it had an estimated population of around million. , the Central African Republic is the scene of a civil war, ongoing since 2012. Most of the Central African Republic consists of Sudano-Guinean savannas, but the country also includes a Sahelo- Sudanian zone in the north and an equatorial forest zone in the south. Two-thirds of the country is within the Ubangi River basin (which flows into the Congo), while the remaining third lies in the basin of the Chari, which flows into Lake Chad. What is today the Central African Republic has been inhabited for millennia; however, the country's current borders were established by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sangha River
The Sangha River, a tributary of the Congo River, is located in Central Africa. Geography The Sangha River is formed at the confluence of the Mambéré River and the Kadéï River at Nola in the western Central African Republic. () The Sangha flows along the border of Cameroon, with the Central African Republic, and then the Republic of Congo. It joins the Congo River at The tributaries of the Sangha River include the Ngoko River (Dja river). Its river mouth and confluence with the Sangha is at Ouésso, in the Republic of the Congo. (). Ecology The Sangha River is a Freshwater ecoregion of Africa. Its wetlands in the Central African Republic, Cameroon and Congo are protected Ramsar site A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O) *** Permanent 8 ha (P) *** Seasonal Intermittent < 8 ha(Ts) ** |
East Province (Cameroon)
The East Region (french: Région de l'Est) occupies the southeastern portion of the Republic of Cameroon. It is bordered to the east by the Central African Republic, to the south by Congo, to the north by the Adamawa Region, and to the west by the Centre and South Regions. With 109,002 km2 of territory, it is the largest region in the nation as well as the most sparsely populated. Historically, the peoples of the East have been settled in Cameroonian territory for longer than any other of the country's many ethnic groups, the first inhabitants being the Baka (or Babinga) pygmies. The East Region has very little industry, its main commerce consisting of logging, timber, and mining. Instead, the bulk of its inhabitants are subsistence farmers. The region is thus of little political import and is often ignored by Cameroonian politicians. This coupled with the low level of development in the province have led to its being dubbed "the forgotten province". The southwest region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Lowland Gorilla
The western lowland gorilla (''Gorilla gorilla gorilla'') is one of two Critically Endangered subspecies of the western gorilla (''Gorilla gorilla'') that lives in Montane ecosystems#Montane forests, montane, Old-growth forest, primary and secondary forest, secondary forest and lowland swampland in central Africa in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea and Gabon. It is the nominate subspecies of the western gorilla, and the smallest of the four gorilla subspecies. The western lowland gorilla is the only subspecies kept in zoos with the exception of Amahoro, a female eastern lowland gorilla at Antwerp Zoo, and a few mountain gorillas kept captive in the Democratic Republic of the Congo. Description The western lowland gorilla is the smallest subspecies of gorilla but still has exceptional size and strength. This species of gorillas exhibits pronounced sexual dimorphism. They possess no tails and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simian Immunodeficiency Virus
''Simian immunodeficiency virus'' (''SIV'') is a species of retrovirus that cause persistent infections in at least 45 species of non-human primates. Based on analysis of strains found in four species of monkeys from Bioko Island, which was isolated from the mainland by rising sea levels about 11,000 years ago, it has been concluded that SIV has been present in monkeys and apes for at least 32,000 years, and probably much longer. Virus strains from three of these primate species, SIVsmm in sooty mangabeys, SIVgor in gorillas and SIVcpz in chimpanzees, are believed to have crossed the species barrier into humans, resulting in HIV-2 and HIV-1 respectively, the two HIV viruses. The most likely route of transmission of HIV-1 to humans involves contact with the blood of chimps and gorillas that are often hunted for bushmeat in Africa. Four subtypes of HIV-1 (M, N, O, and P) likely arose through four separate transmissions of SIV to humans, and the resulting HIV-1 group M strain most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical frame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Western Lowland Gorilla")
.jpg "Click for more on -> Simian Immunodeficiency Virus")
