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Plasmodium malariae--a report of three cases
The Journal of Communicable Diseases
|June 16, 2001
Summary
Kasaragod, Kerala, has reported Plasmodium malariae for the first time. Three cases initially misdiagnosed as P. vivax were confirmed as P. malariae, highlighting the need for accurate malaria diagnosis.
Area of Science:
- Medical Entomology
- Infectious Diseases
- Tropical Medicine
Background:
- Kasaragod District in Kerala, India, has historically reported no cases of Plasmodium malariae.
- Malaria diagnosis relies on accurate identification of Plasmodium species, including P. vivax, P. falciparum, and P. malariae.
Observation:
- During September 1999 to March 2000, 52 slides were initially reported positive for Plasmodium vivax, Plasmodium falciparum, or mixed infections.
- An expert review of these slides identified three cases misclassified as P. vivax that were actually P. malariae.
Findings:
- The confirmed P. malariae cases presented with clinical features similar to other Plasmodium species.
- These infections were associated with individuals who had traveled to or worked in malaria-endemic areas, suggesting imported or introduced transmission.
Implications:
- This finding represents the first documented report of Plasmodium malariae in Kasaragod District.
- Accurate species identification is crucial for effective malaria surveillance and control programs, especially in areas with changing transmission dynamics.
- The misdiagnosis underscores the importance of expert review and potentially advanced diagnostic methods for malaria parasites.