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persistence

Emerging properties of malaria transmission and persistence in urban Accra, Ghana: evidence from a participatory system approach

July 21, 2021 - 17:58 -- Open Access
Author(s): 
Merveille Koissi Savi, Daniel Callo-Concha, Henri E. Z. Tonnang and Christian Borgemeister
Reference: 
Malaria Journal 2021 20:321, 19 July 2021

Several studies that aim to enhance the understanding of malaria transmission and persistence in urban settings failed to address its underlining complexity. This study aims at doing that by applying qualitative and participatory-based system analysis and mapping to elicit the system’s emergent properties.

The persistence of naturally acquired antibodies and memory B cells specific to rhoptry proteins of Plasmodium vivax in patients from areas of low malaria transmission

December 2, 2019 - 15:04 -- Open Access
Author(s): 
Kochayoo P, Changrob S, Wangriatisak K, Lee SK, Chootong P, Han ET
Reference: 
Malaria Journal volume 18, 382 (2019)

Rhoptries are the large, paired, secretory organelles located at the apical tip of the malaria merozoite that are considered important for parasite invasion processes. Plasmodium vivax rhoptry proteins have been shown to induce humoral immunity during natural infections. Therefore, these proteins may be potential novel vaccine candidates. However, there is a lack of data on the duration of antibody and memory B cell (MBC) responses. Here, the longitudinal analysis of antibody and MBC responses to the P. vivax rhoptry proteins PvRALP1-Ecto and PvRhopH2 were monitored and analysed in individuals to determine their persistence.

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