4 resultados para south africa

em Biblioteca Digital da Produção Intelectual da Universidade de São Paulo


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A study was designed to characterize a carbapenem-resistant Klebsiella pneumoniae (KPSA01) isolated from a patient in Gauteng, South Africa without recent travel outside South Africa. Molecular characterization was done using isoelectric focusing, polymerase chain reaction and sequencing for bla(VIM), bla(IMP), bla(NDM), bla(CTX-Ms), bla(OXAs), bla(TEMs), and bla(SHV), plasmid-mediated quinolone resistance determinants, multilocus sequencing typing, plasmid replicon typing, and addiction factors. KPSA01 produced VIM-1 and belonged to the newly described sequence type ST569. The plasmid that harboured bla(VIM) typed within the narrow host range IncF replicon group, contained the aadA1 gene cassette, and tested positive for the vagCD and ccdAB addiction systems. This is the first report of VIM-1-producing K. pneumoniae outside Europe. It is important that surveillance studies be undertaken in Africa to determine if VIM-1-producing K. pneumoniae are present in significant numbers.

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An annotated list of the type specimens of Lygistorrhinidae and Mycetophilidae (Diptera: Bibionomorpha) at the KwaZulu-Natal Museum, Pietermaritzburg, South Africa is provided. Information on 54 type specimens, three lygistorrhinids and 51 mycetophilids, with details of labels and actual preservation of the specimens is furnished. Locality data are georeferenced and habitus images of type specimens are provided.

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This paper develops three basic arguments. First, it presents the basic underpinnings of Brazilian diplomacy in the past half century, concentrating on the changes adopted in the 1980s and the 1990s up to the foreign policy put forward by Lula`s government (2003-2009). It recognises that Lula`s foreign policy represents a step forward, especially where Africa is concerned. However, it does not seem to be clear whether the Brazilian economy has enough strength to sustain such a foreign policy, as is shown in the second part of the paper. This is indeed the case if comparisons are made with India, China and even South Africa, when the latter`s regional role is considered. Finally, an effort is made to summarise the recent political cooperation established between Brazil and African countries as well as to present an overview of Brazil`s trade and investment relations both with the region as a whole and with some important individual partners. Once this picture is established, we investigate whether these realmsdiplomatic/political and economictake independent tracks, or if they do interact in a coherent manner. Africa remained deep inside Brazil and Brazilians, not as something external to ourselves. But as a mythic space; neither geographical, nor historical.

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Rift Valley Fever (RVF) virus (Family Bunyaviridae) is an arthropod-borne RNA virus that infects primarily domestic ruminants and occasionally humans. RVF epizootics are characterized by numerous abortions and mortality among young animals. In humans, the illness is usually characterized by a mild self-limited febrile illness, which could progress to more serious complications. RVF virus is widespread and endemic in many regions of Africa. In Western Africa, several outbreaks have been reported since 1987 when the first major one occurred at the frontier of Senegal and Mauritania. Aiming to evaluate the spreading and molecular epidemiology in these countries, RVFV isolates from 1944 to 2008 obtained from 18 localities in Senegal and Mauritania and 15 other countries were investigated. Our results suggest that a more intense viral activity possibly took place during the last century compared to the recent past and that at least 5 introductions of RVFV took place in Senegal and Mauritania from distant African regions. Moreover, Barkedji in Senegal was possibly a hub associated with the three distinct entries of RVFV in West Africa.