[Genetic diversity of Plasmodium falciparum and its implications in the epidemiology of malaria].
ABSTRACT Genetic diversity provides Plasmodium falciparum with the potential capacity of avoiding the immune response, and possibly supporting the selection of drug or vaccine resistant parasites. These genetic characters play key roles in the selection of appropriate malaria control measures. Diverse clones of Plasmodium falciparum, often denoted as strains, has been documented, and the degree of genetic diversity supported by several kinds of PCR (polymerase chain reaction) assays. Many studies in different endemic regions with differences in their level of disease transmission have clarified the interactions between the parasite populations and malaria epidemiology. This paper describes recombination events of the malaria parasite life cycle that originate such genetic diversity in P. falciparum, reviewing different studies on this aspect and its implications in the immunity and development of control measures in regions with different degrees of endemicity.
- SourceAvailable from: Giovan F Gomez[show abstract] [hide abstract]
ABSTRACT: The development of Plasmodium falciparum resistant to antimalarial drugs constitutes a major public health issue for malaria control. Particularly, the emergence and widespread of chloroquine resistant P. falciparum strains in the second half of XX century represents a new challenge to malaria control. The scientific literature has documented factors related to the human host, the vector, the parasite and the treatment, which could explain the selection, survival and local or wide spread of these strains. In this paper are reviewed non-biological factors that could explain the emergency of P. falciparum resistant chloroquine strains. The understanding of these factors is relevant to design strategies to delay the emergence of antimalarial drug resistant parasites.06/2011; 25(1):97-108.