Related Experiment Videos
Imported tertian malaria resistant to primaquine
The Korean Journal of Internal Medicine
|August 26, 1999
Summary
Primaquine therapy can fail to prevent malaria relapses due to primaquine-resistant Plasmodium vivax strains. This case highlights resistance, not just prophylaxis failure, in malaria treatment.
Area of Science:
- Malariology
- Infectious Diseases
- Parasitology
Background:
- Relapses in Plasmodium vivax and Plasmodium ovale malaria stem from dormant liver-stage parasites called hypnozoites.
- Primaquine is the standard treatment for preventing these relapses through terminal prophylaxis.
Observation:
- Recent reports indicate Plasmodium vivax relapses occurring despite standard primaquine therapy.
- A specific case initially presumed to be a relapse due to loss of prophylaxis was investigated.
Findings:
- The study identified a case of primaquine-resistant malaria.
- This resistance mimics a relapse but is caused by parasite strain insensitivity to primaquine.
Implications:
- Primaquine resistance in Plasmodium vivax poses a significant challenge to malaria elimination efforts.
- Accurate diagnosis differentiating relapse from resistance is crucial for effective treatment strategies.