Yellow Fever Outbreak, Southern Sudan, 2003

In May 2003, an outbreak of fatal hemorrhagic fever, caused by yellow fever virus, occurred in southern Sudan. Phylogenetic analysis showed that the virus belonged to the East African genotype, which supports the contention that yellow fever is endemic in East Africa with the potential to cause large outbreaks in humans

Yellow Fever Outbreak, Imatong, Southern Sudan

In May 2003, the World Health Organization received reports about a possible outbreak of a hemorrhagic disease of unknown cause in the Imatong Mountains of southern Sudan. Laboratory investigations were conducted on 28 serum samples collected from patients in the Imatong region. Serum samples from 13 patients were positive for immunoglobulin M antibody to flavivirus, and serum samples from 5 patients were positive by reverse transcription–polymerase chain reaction with both the genus Flavivirus–reactive primers and yellow fever virus–specific primers. Nucleotide sequencing of the amplicons obtained with the genus Flavivirus oligonucleotide primers confirmed yellow fever virus as the etiologic agent. Isolation attempts in newborn mice and Vero cells from the samples yielded virus isolates from five patients. Rapid and accurate laboratory diagnosis enabled an interagency emergency task force to initiate a targeted vaccination campaign to control the outbreak

Is polygyny a risk factor in the transmission of HIV in sub- Saharan Africa? a systematic review

Using a systematic literature review approach, this paper focused on the role of polygyny in the spread of HIV/AIDS in sub-Saharan Africa (SSA) countries. The widespread practice of polygyny is one feature of many SSA contexts that may be relevant to understanding patterns of HIV prevalence. Building on the conflicting studies on the importance of polygyny, this study investigated whether or not polygyny is a conduit for elevating HIV transmission in SSA countries. Findings showed that polygyny as an institution is perhaps less of a concern; rather the implication that men and women who are in polygamous relationships are also more likely to engage in extra-marital sex - raises secondary questions about their patterns of sexual networking and concurrent sexual partnerships. The findings however show that polygyny amplifies risky sexual behaviours such as sexual networking and concurrent sexual partnerships, all of which were found to be significantly associated with the risk of HIV transmission. This demonstrates that targeting risky sexual behaviours in a broader marital context may be more important for HIV risk reduction than targeting polygyny as an institution

Low levels of awareness despite high prevalence of schistosomiasis among communities in Nyalenda informal settlement, Kisumu city, western Kenya.

INTRODUCTION: Intestinal schistosomiasis is widely distributed around Lake Victoria in Kenya where about 16 million people in 56 districts are at risk of the infection with over 9.1 million infected. Its existence in rural settings has been extensively studied compared to urban settings where there is limited information about the disease coupled with low level of awareness. This study therefore assessed community awareness on existence, signs and symptoms, causes, transmission, control and risk factors for contracting schistosomiasis as well as attitudes, health seeking behaviour and environmental antecedents that affect its control so as to identify knowledge gaps that need to be addressed in order to strengthen schistosomiasis control interventions in informal urban settings. METHODS: The study was carried out in an informal urban settlement where the prevalence of intestinal schistosomiasis was previously reported to be the highest (36%) among the eight informal settlements of Kisumu city. The study adopted cross-sectional design and purposive sampling technique. Eight focus group discussions were conducted with adult community members and eight key informant interviews with opinion leaders. Data was audio recorded transcribed, coded and thematically analyzed using ATLAS.ti version 6 software. RESULTS: Most respondents stated having heard about schistosomiasis but very few had the correct knowledge of signs and symptoms, causes, transmission and control of schistosomiasis. However, there was moderate knowledge of risk factors and at high risk groups. Their attitudes towards schistosomiasis and its control were generally indifferent with a general belief that they had no control over their environmental circumstances to reduce transmission. DISCUSSION/CONCLUSION: Although schistosomiasis was prevalent in the study area, majority of the people in the community had low awareness. This study, therefore, stresses the need for health education to raise community's awareness on schistosomiasis in such settings in order to augment prevention, control and elimination efforts

Socio-demographic characteristics of key informants.

<p>Socio-demographic characteristics of key informants.</p

Socio-demographic characteristics of the study population in focus group discussions.

<p>Socio-demographic characteristics of the study population in focus group discussions.</p