Articles by Keyword: Epidemiology

Search results for Epidemiology

We found 24 results for you
  1. Epidemiology of ryegrass mosaic virus in South Africa

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The distribution and seasonal occurrence of ryegrass mosaic virus (RMV) in South Africa was determined. Italian ryegrass plants were collected from eight different research stations twice during the growing season in 1990 and 1991. Samples were tested for the presence...
  2. Reaction of South African soybean cultivars to rust caused by <em>Phakopsora pachyrhizi</em>

    Reaction of South African soybean cultivars to rust caused by <em>Phakopsora pachyrhizi</em>

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Soybean rust was recorded in South Africa in February 2001 in the Vryheid area of KwaZulu-Natal, from where it spread throughout production areas east of the escarpment. Management of the disease is presently, based on fungicide spray programs. Commercial soybean...
  3. Development of <em>Phakopsora pachyrhizi</em> on soybean at controlled temperature, relative humidity and moisture periods

    Development of <em>Phakopsora pachyrhizi</em> on soybean at controlled temperature, relative humidity and moisture periods

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The influence of temperature, relative humidity (RH) and moisture period (MP) was studied in relation to infection of soybean plants (Glycine max (L.) Merr.) by Asian Soybean Rust (ASR) caused by Phakopsora pachyrhizi Syd. Disease development was investigated at 15,...
  4. Gendered socioeconomic conditions and HIV risk behaviours among young people in South Africa

    Gendered socioeconomic conditions and HIV risk behaviours among young people in South Africa

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Recent evidence suggests that the burden of new HIV infections in sub-Saharan Africa is concentrated among young people, especially females. Even in a country such as South Africa where knowledge among young people of how to protect oneself from infection...
  5. Behaviour and communication change in reducing HIV: is Uganda unique?

    Behaviour and communication change in reducing HIV: is Uganda unique?

    Item type: Journal Article • Journal: African Journal of AIDS Research
    The clearest example of declines in HIV prevalence and changes in sexual behaviour comes from Uganda. Are there lessons to learn for other countries or is Uganda unique? In this paper, we assess the epidemiological and behavioural data on Uganda...
  6. Why do some South African ethnic groups have very high HIV rates and others not?

    Why do some South African ethnic groups have very high HIV rates and others not?

    Item type: Journal Article • Journal: African Journal of AIDS Research
    The differences in HIV prevalence between South Africa's racial/ethnic groups (19.9%, 3.2%, and 0.5% among 15–49-year-old blacks, coloureds and whites, respectively) are as big as those between the countries with the highest and lowest levels of HIV prevalence worldwide. These...
  7. HIV-seroprevalence among pulmonary tuberculosis patients in a tertiary care hospital in Douala, Cameroon

    HIV-seroprevalence among pulmonary tuberculosis patients in a tertiary care hospital in Douala, Cameroon

    Item type: Journal Article • Journal: African Journal of AIDS Research
    A retrospective study was carried out at Douala General Hospital, Cameroon, between July 2007 and July 2011, to determine the prevalence of HIV infection among the pulmonary tuberculosis (pTB) patients and to compare epidemiological profiles with respect to TB/HIV co-infection...
  8. Long-term population effect of male circumcision in generalised HIV epidemics in sub-Saharan Africa

    Long-term population effect of male circumcision in generalised HIV epidemics in sub-Saharan Africa

    Item type: Journal Article • Journal: African Journal of AIDS Research
    This paper examines the complex relationship between male circumcision and HIV prevalence and incidence in sub-Saharan African countries that have generalised epidemics. In South Africa, the mean yearly HIV incidence and an estimate of the net reproduction rate of the...
  9. High prevalence of HIV and malaria co-infection in urban Douala, Cameroon

    High prevalence of HIV and malaria co-infection in urban Douala, Cameroon

    Item type: Journal Article • Journal: African Journal of AIDS Research
    A prospective cohort study was undertaken among 684 adult hospital attendees in Douala, Littoral Province, Cameroon. The objectives were to determine the prevalence of HIV/malaria co-infection and to determine and compare the prevalence of some parasitological, haematological and clinical parameters...
  10. A network-level explanation for the differences in HIV prevalence in South Africa's racial groups

    A network-level explanation for the differences in HIV prevalence in South Africa's racial groups

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Analyses of individual-level risk factors have not been able to adequately explain why HIV has spread so extensively in southern Africa and why this has occurred especially within certain racial or ethnic groups. Using data from a longitudinal study of...