scholarly journals Epidemiology and clinical manifestations of Leishmania donovani infection in two villages in an endemic area in eastern Sudan

2002 ◽  
Vol 7 (1) ◽  
pp. 35-44 ◽  
Author(s):  
E. A. G. Khalil ◽  
E. E. Zijlstra ◽  
P. A. Kager ◽  
A. M. El Hassan
2004 ◽  
Vol 9 (12) ◽  
pp. 1305-1311 ◽  
Author(s):  
Sayda Hassan el-Safi ◽  
Nuha Hamid ◽  
Ahmed Omer ◽  
Ahmed Abdel-Haleem ◽  
Awad Hammad ◽  
...  

PEDIATRICS ◽  
1977 ◽  
Vol 60 (2) ◽  
pp. 209-212
Author(s):  
D. Thompson ◽  
C. Pegelow ◽  
A. Underman ◽  
D. Powars

A 38-day-old infant had fever, jaundice, hepatosplenomegaly, and a hemolytic anemia. A peripheral blood smear demonstrated intraerythrocytic malarial parasites identified as Plasmodium vivax. Maternal and infant sera contained antibodies to this species. A directed history revealed the mother had suffered several febrile illnesses in Mexico during her pregnancy. Malaria had not been diagnosed nor was it considered at the time of her delivery at this hospital. Review of this and six other cases of congenital malaria reported in this country since 1950 indicates clinical manifestations seldom appear before 3 weeks of age. Although these signs are more frequently associated with other transplacental infections, their occurrence in an infant whose mother is from or who has traveled in an endemic area should prompt consideration of the diagnosis of congenital malaria.


2017 ◽  
Vol 05 (05) ◽  
Author(s):  
Lana M El amin ◽  
Hshim Balla M ◽  
Abakar AD ◽  
Khalid KE ◽  
Elbadry AA ◽  
...  

2019 ◽  
Vol 12 (2) ◽  
pp. 72
Author(s):  
Sem S. Surja ◽  
Robiatul Adawiyah ◽  
Retno Wahyuningsih

Talaromycosis marneffei is a mycotic disease caused by Talaromyces marneffei which primarily infectimmunocompromised patient. This disease is endemic in Southeast Asia, and Indonesia consider as endemic area dueto a case of tourist who got the infection after visiting Indonesia. Diagnosis was made based on clinical suspicion withlaboratory confirmation. Clinical manifestations are not specific, such as fever, anemia, weight loss, lymphadenopathy,hepatomegaly, splenomegaly, respiratory disorder, and cutaneous manifestation. Histopathology and culture are themost common examination performed for diagnosis. In histopathology examination, fungi appear as fission arthroconidiacells which shape round to oval, with cross wall formation inside or outside macrophage and histiocyte. Thermaldimorphism characteristic can be observed in fungal culture. Fungi grows as mold at 25oC-30oC and as yeast at 37oC.Definitive identification of T. marneffei was done by molecular examination using primers derived from ITS region asprimary marker and beta tubulin region as secondary marker. Talaromyces marneffei is sapronosis, that transmitted viainhalation of conidia from environment.


Acta Tropica ◽  
2004 ◽  
Vol 92 (1) ◽  
pp. 77-82 ◽  
Author(s):  
M.M. Hassan ◽  
F.M.A. Elraba’a ◽  
R.D. Ward ◽  
R.D.C. Maingon ◽  
D.A. Elnaiem

2007 ◽  
Vol 14 (12) ◽  
pp. 1592-1595 ◽  
Author(s):  
Durria Mansour ◽  
Elfadil M. Abass ◽  
Mohamed el Mutasim ◽  
Abdelhafeiz Mahamoud ◽  
Abdallah el Harith

ABSTRACT Corroboration of serology results is essential for restricting the risk of inappropriate antileishmanial prescription. A direct agglutination test (DAT) and a recently developed β-mercaptoethanol-modified enzyme-linked immunosorbent assay (β-ME ELISA) based on the use of antigen prepared as described for the DAT were applied to 416 sera from two Sudanese populations with and without clinical evidence of visceral leishmaniasis (VL). Of 285 sera with the lowest antileishmanial DAT titers (≤1:100 to 1:1,600), 270 (94.7%) scored comparable minimum β-ME ELISA absorbance values (≤0.1 to 0.26). In 117 sera that demonstrated the highest DAT titers (1:12,800 to ≥1:25,600), 86 (73.5%) scored maximum (0.81 to ≥1.35) and 30 (25.6%) medium (0.27 to 0.80) β-ME ELISA absorbance values. VL diagnosis was established for 142 (44.1%) patients in the VL-symptomatic group (n = 322), based on positive microscopy for Leishmania donovani in lymph node aspirates or positive DAT (titer, ≥1:3,200). Of the 125 sera from the symptomatic patients for whom microscopy was positive for VL, 111 (88.8%) had comparable positive DAT and β-ME ELISA readings. In all 17 sera from the symptomatic DAT-positive patients for whom leishmaniasis was not established by microscopy but who responded favorably to antileishmanial therapy, absorbance values (≥0.27) indicative of VL were obtained by β-ME ELISA. Of 197 symptomatic patients for whom microscopy was negative for VL, 172 (87.3%) tested negative in β-ME ELISA and 180 (91.4%) in DAT. Based on the high reliability demonstrated here for VL detection, β-ME ELISA fulfills the requirement of confirming DAT results in patients manifesting suspected VL.


Pathogens ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1356
Author(s):  
Kota Maeda ◽  
Sonya Sadoughi ◽  
Ayako Morimoto ◽  
Kazuyuki Uchida ◽  
James K. Chambers ◽  
...  

Visceral leishmaniasis (VL) is the most severe form of leishmaniasis caused by protozoan parasites of the genus Leishmania. Hepatomegaly is one of the most frequent clinical manifestations of VL, whereas immunopathology of the symptom has not been well investigated. Using our chronic model of experimental VL, we examined the influence of Leishmania donovani infection on the liver by clinical, histological, and biochemical analyses. The infected mice showed increased liver weight 24 weeks post-infection. Although an increase in serum ALT and inflammatory cell accumulation were observed in the livers of infected mice, no apparent parenchymal necrosis or fibrosis was observed. Tissue water content analyses demonstrated that increased liver weight was predominantly due to an increase in water weight. Together with the finding of hepatic sinusoidal dilation, these results suggested that edema associated with sinusoidal dilation causes hepatomegaly in L. donovani infection. Immunostaining of platelets and erythrocytes showed no thrombus formation or damage to the sinusoidal endothelium in the liver of infected mice. Taken together, these results suggest that hepatomegaly during experimental VL is caused by non-obstructive sinusoidal dilation.


2003 ◽  
Vol 9 (4) ◽  
pp. 837-843 ◽  
Author(s):  
M. G. Abdo ◽  
W. M. El Amin ◽  
E. A. G. Khalil ◽  
M. M. Mukhtar

A longitudinal study was done in a leishmaniasis -endemic region in eastern Sudan during the period November 2001-February 2003 to determine the incidence of failure of sodium stibogluconate treatment. We studied 820 confirmed visceral leishmaniasis patients. All were treated with sodium stibogluconate, 20 mg/kg body weight for at least 28 days. Parasites were isolated from lymph node aspirates from 22 participants identified as relapsed patients. All isolates were typed as Leishmania donovani based on polymerase chain reaction [PCR] amplification of parasite kDNA. Six parasites showed in vitro resistance to sodium stibogluconate using murine J774 macrophage amastigote testing method. The resistant isolates showed different restriction profiles when the amplified kDNA PCR products were digested with ALU1 restriction enzyme, indicating that resistance was mediated by different parasite clones


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