Skip to main content
main-content

01.12.2012 | Research | Ausgabe 1/2012 Open Access

Malaria Journal 1/2012

Operational research to inform a sub-national surveillance intervention for malaria elimination in Solomon Islands

Zeitschrift:
Malaria Journal > Ausgabe 1/2012
Autoren:
Jo-An Atkinson, Marie-Louise Johnson, Rushika Wijesinghe, Albino Bobogare, L Losi, Matthew O'Sullivan, Yuka Yamaguchi, Geoffrey Kenilorea, Andrew Vallely, Qin Cheng, Andrew Ebringer, Lisa Bain, Karen Gray, Ivor Harris, Maxine Whittaker, Heidi Reid, Archie Clements, Dennis Shanks
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1475-2875-11-101) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors' contributions

AV, MLJ, MO, YY, GK, JA, RW, HR, AE, AC, MW, LL, AB and DS conceived and designed the quantitative and/or qualitative components of the study and/or supervised fieldwork. LB, KG and QC modified and performed methodologies for PCR and quantitative data analysis. Qualitative data analysis was carried out by YY, MO, GK with guidance from JA. Manuscript was written by JA with contributions from MLJ, IH, MW, AV, AC, AE, DS, RW, LB, KG and QC. All authors have read and approved the final manuscript.

Abstract

Background

Successful reduction of malaria transmission to very low levels has made Isabel Province, Solomon Islands, a target for early elimination by 2014. High malaria transmission in neighbouring provinces and the potential for local asymptomatic infections to cause malaria resurgence highlights the need for sub-national tailoring of surveillance interventions. This study contributes to a situational analysis of malaria in Isabel Province to inform an appropriate surveillance intervention.

Methods

A mixed method study was carried out in Isabel Province in late 2009 and early 2010. The quantitative component was a population-based prevalence survey of 8,554 people from 129 villages, which were selected using a spatially stratified sampling approach to achieve uniform geographical coverage of populated areas. Diagnosis was initially based on Giemsa-stained blood slides followed by molecular analysis using polymerase chain reaction (PCR). Local perceptions and practices related to management of fever and treatment-seeking that would impact a surveillance intervention were also explored using qualitative research methods.

Results

Approximately 33% (8,554/26,221) of the population of Isabel Province participated in the survey. Only one subject was found to be infected with Plasmodium falciparum (Pf) (96 parasites/μL) using Giemsa-stained blood films, giving a prevalence of 0.01%. PCR analysis detected a further 13 cases, giving an estimated malaria prevalence of 0.51%. There was a wide geographical distribution of infected subjects. None reported having travelled outside Isabel Province in the previous three months suggesting low-level indigenous malaria transmission. The qualitative findings provide warning signs that the current community vigilance approach to surveillance will not be sufficient to achieve elimination. In addition, fever severity is being used by individuals as an indicator for malaria and a trigger for timely treatment-seeking and case reporting. In light of the finding of a low prevalence of parasitaemia, the current surveillance system may not be able to detect and prevent malaria resurgence.

Conclusion

An adaption to the malERA surveillance framework is proposed and recommendations made for a tailored provincial-level surveillance intervention, which will be essential to achieve elimination, and to maintain this status while the rest of the country catches up.
Zusatzmaterial
Additional file 1: List of staff whose contribution to the mass blood survey is acknowledged and appreciated. (DOCX 19 KB)
12936_2012_2097_MOESM1_ESM.docx
Authors’ original file for figure 1
12936_2012_2097_MOESM2_ESM.pdf
Authors’ original file for figure 2
12936_2012_2097_MOESM3_ESM.pdf
Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 1/2012

Malaria Journal 1/2012 Zur Ausgabe

Neu im Fachgebiet Innere Medizin

Meistgelesene Bücher aus der Inneren Medizin

2017 | Buch

Rheumatologie aus der Praxis

Entzündliche Gelenkerkrankungen – mit Fallbeispielen

Dieses Fachbuch macht mit den wichtigsten chronisch entzündlichen Gelenk- und Wirbelsäulenerkrankungen vertraut. Anhand von über 40 instruktiven Fallbeispielen werden anschaulich diagnostisches Vorgehen, therapeutisches Ansprechen und der Verlauf …

Herausgeber:
Rudolf Puchner

2016 | Buch

Ambulant erworbene Pneumonie

Was, wann, warum – Dieses Buch bietet differenzierte Diagnostik und Therapie der ambulant erworbenen Pneumonie zur sofortigen sicheren Anwendung. Entsprechend der neuesten Studien und Leitlinien aller wichtigen Fachgesellschaften.

Herausgeber:
Santiago Ewig

Mail Icon II Newsletter

Bestellen Sie unseren kostenlosen Newsletter Update Innere Medizin und bleiben Sie gut informiert – ganz bequem per eMail.

© Springer Medizin 

Bildnachweise