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Protocol for Plasmodium falciparum Infections in Mosquitoes and Infection Phenotype Determination
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Published on: July 3, 2007

A change of Plasmodium species infecting children in Karachi over the last decade

S Rafi1, M A Memon, M H Rao

  • 1Department of Paediatrics, Dow Medical College, Karachi.

JPMA. the Journal of the Pakistan Medical Association
|July 1, 1994
PubMed

Insights

Plasmodium vivax was the most common malaria parasite in febrile children from 1981-1985. Plasmodium falciparum became predominant from 1986-1992, highlighting the need for improved diagnosis of this severe malaria type.

Area of Science:

  • Medical Parasitology
  • Pediatric Infectious Diseases
  • Public Health

Background:

  • Malaria remains a significant health concern in children.
  • Accurate species identification is crucial for effective treatment and control.
  • Plasmodium falciparum malaria is associated with higher morbidity and mortality.

Purpose of the Study:

  • To analyze the trends in Plasmodium species prevalence in febrile children over a 12-year period.
  • To identify shifts in the dominant Plasmodium species causing malaria in pediatric populations.
  • To underscore the need for improved diagnostic tools for severe malaria cases.

Main Methods:

  • Retrospective analysis of blood slides from 526 malaria-positive pediatric cases.
  • Species and stage identification of Plasmodium parasites.
  • Statistical analysis of species prevalence over different time intervals (1981-1985 vs. 1986-1990).

Main Results:

  • Plasmodium vivax was the predominant species between 1981-1985 (P < 0.01).
  • Plasmodium falciparum became the predominant species from 1986-1990 and this trend continued until 1992.
  • Children aged 5-15 years constituted 59.3% of all malaria cases.

Conclusions:

  • A significant epidemiological shift occurred, with Plasmodium falciparum replacing Plasmodium vivax as the dominant malaria species in children.
  • The increasing prevalence of Plasmodium falciparum necessitates enhanced diagnostic capabilities at the primary healthcare level.
  • Further research into rapid and accurate diagnostic methods for Plasmodium falciparum is essential for timely intervention and improved patient outcomes.

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