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Parasitological rebound effect and emergence of pyrimethamine resistance in Plasmodium falciparum after single-dose sulfadoxine-pyrimethamine.
- Source :
-
The Journal of infectious diseases [J Infect Dis] 2005 Dec 01; Vol. 192 (11), pp. 1962-5. Date of Electronic Publication: 2005 Oct 20. - Publication Year :
- 2005
-
Abstract
- Intermittent preventive treatment for malaria in infants (IPTi) is a promising malaria control strategy. However, mass preventive treatment for malaria inherently bears the risk of increasing drug resistance. Here, the effect of single-dose sulfadoxine-pyrimethamine (S-P) versus placebo on Plasmodium falciparum infection rates was assessed in 63 selected infants who were aparasitemic at enrollment. An increase in the proportion of infants with isolates exhibiting drug resistance-associated mutations was detected 3 weeks after drug application in the treatment group. S-P, in the setting of IPTi, appears to cause a parasitological rebound effect in which there is selection of drug-resistant parasites for a short period after drug clearance.
- Subjects :
- Animals
Antimalarials therapeutic use
Drug Combinations
Drug Resistance genetics
Humans
Infant
Malaria, Falciparum parasitology
Plasmodium falciparum genetics
Plasmodium falciparum isolation & purification
Pyrimethamine administration & dosage
Pyrimethamine therapeutic use
Sulfadoxine therapeutic use
Antimalarials administration & dosage
Malaria, Falciparum drug therapy
Plasmodium falciparum drug effects
Pyrimethamine pharmacology
Sulfadoxine administration & dosage
Subjects
Details
- Language :
- English
- ISSN :
- 0022-1899
- Volume :
- 192
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- The Journal of infectious diseases
- Publication Type :
- Academic Journal
- Accession number :
- 16267768
- Full Text :
- https://doi.org/10.1086/497698