BackgroundMultiplicity and genetic diversity of Plasmodium falciparum infection might play a role in determining the clinical outcome of malaria infection and could be a fair reflection of the disease transmission rate. This study investigated the genetic diversity of P. falciparum and multiplicity of infection in relation to the severity of malaria and age of patients in Gezira State, Sudan.MethodsA cross-sectional health facilities-based survey was conducted in Gezira State, Sudan in January 2012. A total of 140 P. falciparum malaria patients diagnosed with microscopy and confirmed using nested PCR were recruited and classified into uncomplicated malaria and severe malaria states according to the standard WHO criteria. DNA was extracted and MSP1 and MSP2 allelic families were determined using nested PCR.ResultsThe overall multiplicity of infection (MOI) was 2.25 and 2.30 and 2.15 for uncomplicated and severe malaria respectively. There were no statistically significant differences between uncomplicated and severe malaria (SM) patient groups in MOI with regard to MSP1, MSP2 and overall MOI (Mann-Whitney U-test; all P < 0.05). The predominant MSP1 allelic families were MAD20 for uncomplicated malaria and RO33 for severe malaria. The distribution of both FC27 and IC1/3D7 MSP2 allelic families were approximately the same across disease severity. One hundred and eleven P. falciparum isolates (81 %) consisted of multiple genotypes; 71/90 (78.9 %) in uncomplicated malaria and 40/50 (85.1 %) in severe malaria patient groups. Neither MSP1 nor MSP2 allelic families showed association with malaria severity. No statistically significant differences in multiplicity of infection were observed between different age groups.ConclusionIn this study the majority of P. falciparum isolates from uncomplicated and severe malaria patients consisted of multiple genotypes. Further molecular epidemiological studies delineate the link between P. falciparum genotype with the malaria phenotype in different regions are encouraged.
Introduction: Malaria remains one of the most common public health problems worldwide, especially in Sudan. With this short communication we aimed at reporting on the latest malaria epidemic that had occurred in the humanitarian settings in South Kordofan state, south-western Sudan, during 2018 and 2019. Methodology: This is a cross-sectional study analyzing malaria surveillance reports between February 2018 to September 2019. Malaria was reported from febrile patients with confirmed malaria diagnosis using Giemsa stain. According to age, patients were distributed across three categories: less than 5 years, 5 to 15 years, and more than 15 years. Results: In 2019 and 2018, 63,214 and 63,224 cases of malaria were reported, respectively, constituting around 5.5% of the state population (1,152,900). In 2018, 3,571 malaria cases were reported in February, then they decreased in August followed by increase in September-October. In 2019, 15,610 malaria cases were reported in September. Malaria cases aged less than 5 years were 21,848 and 23,561 cases in 2018 and 2019, respectively. Conclusions: The reported sudden epidemic of malaria is alarming. Therefore, identifying the risk factors associated with this epidemic is crucial to malaria prevention and control, and hence successful achievement of malaria elimination.
Objectives Toxoplasma gondii is an opportunistic parasite that causes a clinical manifestation known as toxoplasmosis. We investigated the prevalence and potential risk factors of T. gondii infection among women in Khartoum, Sudan. A sero-parasitological cross-sectional study included 100 women aging between 15 and 50 years old was conducted between January and November 2018. Serum samples were collected and investigated for the presence of anti- T. gondii immunoglobulins. Results Mean age of the women population included was 26.75 ± 8.25 with a range between 15 and 50 years. Sero-prevalence of T. gondii antibodies was 27% (27/100) with a 95% confidence interval (CI) of 18.6–36.8%. Among seropositive population 81% (22/27), 15% (4/27) and 4% (1/27) were seropositive for IgG antibodies, IgM antibodies and both antibodies respectively. Age group 21–30 years old had the highest frequency of detected IgG (10/45) and IgM (3/45). Married women had the highest frequency of detected IgG or IgM, 18/79 and 3/79, respectively. Risk factors analysis showed a total of 37/100 participants were having direct contact with cats and 66/100 have a frequent raw meat consumption, neither direct cats contact nor raw meat consumption had a statistically significant association with seropositivity to T. gondii (P value = 0.052 and 0.565, respectively). Electronic supplementary material The online version of this article (10.1186/s13104-019-4314-0) contains supplementary material, which is available to authorized users.
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