نتایج جستجو برای: east and central africa
تعداد نتایج: 16930528 فیلتر نتایج به سال:
Helicobacter pylori, a chronic gastric pathogen of human beings, can be divided into seven populations and subpopulations with distinct geographical distributions. These modern populations derive their gene pools from ancestral populations that arose in Africa, Central Asia, and East Asia. Subsequent spread can be attributed to human migratory fluxes such as the prehistoric colonization of Poly...
ing infections in humans is genetically indistinguishable from the virus found in Arabian camels (dromedaries) in the Middle East. Although no primary human case of MERS was reported outside the Arabian Peninsula, camel populations in Africa are known to have high prevalence of antibodies against MERS-CoV. We carried out surveillance for MERS-CoV in dromedaries in Africa and Central Asia. By ME...
The East African Integrated Disease Surveillance Network (EAIDSNet) was formed in response to a growing frequency of cross-border malaria outbreaks in the 1990s and a growing recognition that fragmented disease interventions, coupled with weak laboratory capacity, were making it difficult to respond in a timely manner to the outbreaks of malaria and other infectious diseases. The East Africa Co...
BACKGROUND AND AIMS The coffee genus (Coffea) comprises 124 species, and is indigenous to the Old World Tropics. Due to its immense economic importance, Coffea has been the focus of numerous genetic diversity studies, but despite this effort it remains insufficiently studied. In this study the genetic diversity and genetic structure of Coffea across Africa and the Indian Ocean islands is invest...
In a report from the Colonial Office (1950) it is stated that the venereal diseases are second only to malaria as a cause of ill-health in East Africa. Writing on the same subject, McElligott (1951), dealing with East and Central Africa, and Lees (1951), discussing West Africa, agree that the incidence is very high"a formidable medical problem". The summary by Rae (1951) of the venereal disease...
Recent reports of the World Health Organization have shown that malaria as an indigenous disease has disappeared from Europe and from the U.S.A., from most of the U.S.S.R., from Israel, Lebanon, large parts of India, from Singapore, Hong-Kong, Taiwan, South Africa, Australia, Chile, most of Argentina and Venezuela, most of the islands of the Caribbean, and from Mauritius. Nevertheless, the whol...
This paper will discuss about the role of the geopolitical location of South Africa in the development of movie and the cinema industry in this country. Despite of bringing ci-nema to South Africa by white Europeans, but the development of this phenomenon is mostly due to the geopolitical position of this country. It is interesting to know that ci-nema reached Africa in much the same time as it...
were newly infected with HIV in 2001 live in subSaharan Africa, according to UNAIDS. The vast majority of HIV-infected adults in Africa acquired their infection through heterosexual intercourse. Over the decades since the AIDS epidemic was first noted, researchers have observed that the prevalence of HIV infection within Africa varies greatly. While many areas in East and Southern Africa experi...
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