Malaria is among the leading cause of infection in individuals with sickle cell disease (SCD) living in sub-Saharan Africa, including Tanzania. However, after 2005 the standard treatment guidelines (STGs) on malaria chemoprevention for SCD patients were non-existent, and at present no medicine is recommended for SCD patients. Since several anti-malarials have been approved for the treatment of malaria in Tanzania, it is important to establish if there is a continued use of chemoprevention against malaria among SCD children.
Plasmodium vivax infection is rising in sub-Saharan Africa, where Plasmodium falciparum is responsible for more than 90% of malaria cases. While P. vivax is identified as a major cause of severe and cerebral malaria in South east Asia, the Pacific and South America, most of the severe and cerebral cases in Africa were attributed to P. falciparum. Cases of severe malaria due to P. vivax are emerging in Africa. A few severe P. vivax cases were reported in Eastern Sudan and they were underestimated due to the lack of accurate diagnosis, low parasitaemia and seldom use of rapid diagnostic tests (RDTs).
Next-generation sequencing (NGS) technologies are increasingly being used to address a diverse range of biological and epidemiological questions.
Parasite resistance against anti-malarial drugs is a major threat to the ongoing malaria control and elimination strategies.
Unlike the case in Asia and Latin America, Plasmodium vivax infections are rare in sub-Saharan Africa due to the absence of the Duffy blood group antigen (Duffy antigen), the only known erythrocyte receptor for the P. vivax merozoite invasion ligand, Duffy binding protein 1 (DBP1).
Populations in sub-Saharan Africa have historically been exposed to intense selection from chronic infection with falciparum malaria.
Malaria remains a major global threat to human health and economic development.
While the importance of understanding human-vector interaction is well-established, relatively few studies have included human behaviour when measuring exposure to malaria vectors.
The present study gave the first molecular evidence of P. vivax in Nigeria in Duffy negative individuals.
In sub-Saharan Africa, inherited causes of anemia are common, but data are limited regarding the geographical prevalence and coinheritance of these conditions and their overall contributions to childhood anemia.