Abstract
This paper reviews surveys carried out, over a period of 6 years between 1989 and 1995, to examine Plasmodium falciparum population structure in Asar village in eastern Sudan, an area of unstable malaria, the incidence of which is confined to a few weeks following the short: rainy season (June-October). The first phase of the study involved regular cross sectional surveys, between 1989 and 1993 during the seasons of malaria incidence, while the second involved surveys during the malaria-free months of the dry seasons. The parasites were examined for 20 polymorphic loci, including enzyme electrophoretic variants, proteins detected by 2 dimensional polyacrylamide gel electrophoresis, antigens detected by monoclonal antibodies, and in vitro responses to antimalarial drugs. In addition, alleles of the polymorphic genes for merozoite surface proteins 1 and 2 (MSP-1, MSP-2) were examined using the polymerase chain reaction and oligonucleotide probes. Great genetic complexity was observed among the parasites which appeared during the short transmission seasons. A large proportion of the patients who were infected during the transmission season maintained asymptomatic, subpatent parasitaemias throughout the subsequent dry season, often as genetically complex infections.
| Original language | English |
|---|---|
| Pages (from-to) | 585-589 |
| Number of pages | 5 |
| Journal | Transactions of the Royal Society of Tropical Medicine and Hygiene |
| Volume | 92 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1998 |
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Keywords
- Genetics
- Malaria
- Msp1 gene
- Msp2 gene
- Plasmodium falciparum
- Population structure
- Sudan
ASJC Scopus subject areas
- Parasitology
- Medicine(all)
Cite this
Unstable malaria in Sudan : The influence of the dry season. Plasmodium falciparum population in the unstable malaria area of eastern Sudan is stable and genetically complex. / Babiker, Hamza A.
In: Transactions of the Royal Society of Tropical Medicine and Hygiene, Vol. 92, No. 6, 1998, p. 585-589.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Unstable malaria in Sudan
T2 - The influence of the dry season. Plasmodium falciparum population in the unstable malaria area of eastern Sudan is stable and genetically complex
AU - Babiker, Hamza A.
PY - 1998
Y1 - 1998
N2 - This paper reviews surveys carried out, over a period of 6 years between 1989 and 1995, to examine Plasmodium falciparum population structure in Asar village in eastern Sudan, an area of unstable malaria, the incidence of which is confined to a few weeks following the short: rainy season (June-October). The first phase of the study involved regular cross sectional surveys, between 1989 and 1993 during the seasons of malaria incidence, while the second involved surveys during the malaria-free months of the dry seasons. The parasites were examined for 20 polymorphic loci, including enzyme electrophoretic variants, proteins detected by 2 dimensional polyacrylamide gel electrophoresis, antigens detected by monoclonal antibodies, and in vitro responses to antimalarial drugs. In addition, alleles of the polymorphic genes for merozoite surface proteins 1 and 2 (MSP-1, MSP-2) were examined using the polymerase chain reaction and oligonucleotide probes. Great genetic complexity was observed among the parasites which appeared during the short transmission seasons. A large proportion of the patients who were infected during the transmission season maintained asymptomatic, subpatent parasitaemias throughout the subsequent dry season, often as genetically complex infections.
AB - This paper reviews surveys carried out, over a period of 6 years between 1989 and 1995, to examine Plasmodium falciparum population structure in Asar village in eastern Sudan, an area of unstable malaria, the incidence of which is confined to a few weeks following the short: rainy season (June-October). The first phase of the study involved regular cross sectional surveys, between 1989 and 1993 during the seasons of malaria incidence, while the second involved surveys during the malaria-free months of the dry seasons. The parasites were examined for 20 polymorphic loci, including enzyme electrophoretic variants, proteins detected by 2 dimensional polyacrylamide gel electrophoresis, antigens detected by monoclonal antibodies, and in vitro responses to antimalarial drugs. In addition, alleles of the polymorphic genes for merozoite surface proteins 1 and 2 (MSP-1, MSP-2) were examined using the polymerase chain reaction and oligonucleotide probes. Great genetic complexity was observed among the parasites which appeared during the short transmission seasons. A large proportion of the patients who were infected during the transmission season maintained asymptomatic, subpatent parasitaemias throughout the subsequent dry season, often as genetically complex infections.
KW - Genetics
KW - Malaria
KW - Msp1 gene
KW - Msp2 gene
KW - Plasmodium falciparum
KW - Population structure
KW - Sudan
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U2 - 10.1016/S0035-9203(98)90774-X
DO - 10.1016/S0035-9203(98)90774-X
M3 - Article
VL - 92
SP - 585
EP - 589
JO - Transactions of the Royal Society of Tropical Medicine and Hygiene
JF - Transactions of the Royal Society of Tropical Medicine and Hygiene
SN - 0035-9203
IS - 6
ER -