Differential impact of malaria control interventions on P. falciparum and P. vivax infections in young Papua New Guinean children.
Epidemiology
Incidence
Malaria control
P. falciparum
P. vivax
Papua New Guinea
Prevalence
Journal
BMC medicine
ISSN: 1741-7015
Titre abrégé: BMC Med
Pays: England
ID NLM: 101190723
Informations de publication
Date de publication:
09 12 2019
09 12 2019
Historique:
received:
18
08
2019
accepted:
29
10
2019
entrez:
10
12
2019
pubmed:
10
12
2019
medline:
24
4
2020
Statut:
epublish
Résumé
As malaria transmission declines, understanding the differential impact of intensified control on Plasmodium falciparum relative to Plasmodium vivax and identifying key drivers of ongoing transmission is essential to guide future interventions. Three longitudinal child cohorts were conducted in Papua New Guinea before (2006/2007), during (2008) and after scale-up of control interventions (2013). In each cohort, children aged 1-5 years were actively monitored for infection and illness. Incidence of malaria episodes, molecular force of blood-stage infections ( Between 2006 and 2008, P. falciparum infection prevalence, Intensified vector control and routine case management had a differential impact on rates of P. falciparum and P. vivax infections but not clinical malaria episodes in young children. This suggests comparable reductions in new mosquito-derived infections but a delayed impact on P. vivax relapsing infections due to a previously acquired reservoir of hypnozoites. This demonstrates the need to strengthen implementation of P. vivax radical cure to maximise impact of control in co-endemic areas. The high heterogeneity of malaria in 2013 highlights the importance of surveillance and targeted interventions to accelerate towards elimination.
Identifiants
pubmed: 31813381
doi: 10.1186/s12916-019-1456-9
pii: 10.1186/s12916-019-1456-9
pmc: PMC6900859
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
220Subventions
Organisme : NIAID NIH HHS
ID : U19 AI129392
Pays : United States
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