Simple blood-spot sampling with nested polymerase chain reaction detection for epidemiology studies on Brugia malayi

Cox-Singh, Janet; Pomrehn, Andrea S; Rahman, Hasan Abdul; Zakaria, Robaiza; Miller, Andy O.

doi:10.1016/s0020-7519(99)00015-6

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…From the remaining 75 records, 17 were excluded because they did not contain original prevalence data, and one because the full text was not available after contacting the author. The included 57 papers comprised 38 peer-reviewed journal articles and 19 grey literature reports [ 5 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 ,…”

Section: Resultsmentioning

confidence: 99%

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Lymphatic Filariasis in Mainland Southeast Asia: A Systematic Review and Meta-Analysis of Prevalence and Disease Burden

2017

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Accurate prevalence data are essential for the elimination of lymphatic filariasis (LF) as a public health problem. Despite it bearing one of the highest burdens of disease globally, there remains limited reliable information on the current epidemiology of filariasis in mainland Southeast Asia. We conducted a systematic review and meta-analysis of available literature to assess the recent and current prevalence of infection and morbidity in the region. Fifty-seven journal articles and reports containing original prevalence data were identified, including over 512,010 participants. Data were summarised using percentage prevalence estimates and a subset combined using a random effects meta-analysis by country and year. Pooled estimates for microfilaraemia, immunochromatographic card positivity and combined morbidity were 2.64%, 4.48% and 1.34% respectively. Taking into account pooled country estimates, grey literature and the quality of available data, we conclude that Lao People's Democratic Republic (PDR), Myanmar and Northeast India demonstrate ongoing evidence of LF transmission that will require multiple further rounds of mass drug administration. Bangladesh, Malaysia, Thailand and Vietnam appear close to having eliminated LF, whilst Cambodia has already achieved elimination status. We estimate that the burden of morbidity is likely high in Thailand; moderate in Cambodia, Myanmar, and Northeast India; and low in Bangladesh. There was insufficient evidence to accurately estimate the disease burden in Lao PDR, Malaysia or Vietnam. The results of this study indicate that whilst considerable progress toward LF elimination has been made, there remains a significant filariasis burden in the region. The results of this study will assist policy makers to advocate and budget for future control programs.

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Section: Resultsmentioning

confidence: 99%

“…Pre-MDA studies of the local population in Peninsular Malaysia, Sabah and Sarawak found a prevalence of B. malayi Mf of 0.26–23.85%, 20.69% and 0.90%, respectively [ 31 , 34 , 35 , 46 , 53 ].…”

Section: Prevalence Results and Discussion By Countrymentioning

confidence: 99%

Lymphatic Filariasis in Mainland Southeast Asia: A Systematic Review and Meta-Analysis of Prevalence and Disease Burden

2017

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“…Prevalence estimates of Brugian microfilaremia in endemic areas of Malaysia and Indonesia range from 12% to 30%. 24,[33][34][35] Although they have not been tested in the laboratory, other microfilarial species found in human blood (e.g., W. bancrofti , M. ozzardi, Loa loa ) could also, in theory, contribute to accelerated dengue EIP in Ae. aegypti .…”

Section: Discussionmentioning

confidence: 99%

Simulation Models Examining the Effect of Brugian Filariasis on Dengue Epidemics

Vaughan

Focks²,

Turell³

2009

The American Journal of Tropical Medicine and Hygiene

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Concurrent ingestion of microfilariae (mf) and arboviruses by mosquitoes can enhance the transmission of virus compared with when virus is ingested alone. We studied the effect of mf enhancement on the extrinsic incubation period (EIP) of dengue 1 virus within Aedes aegypti mosquitoes by feeding mosquitoes on blood that either contained virus plus Brugia malayi mf or virus only. Mosquitoes were sampled over time to determine viral dissemination rates. Co-ingestion of mf and virus reduced viral EIP by over half. We used the computer simulation program, DENSiM, to compare the predicted patterns of dengue incidence that would result from such a shortened EIP versus the EIP derived from the control (i.e., virus only) group of mosquitoes. Results indicated that, over the 14-year simulation period, mf-induced acceleration of the EIP would generate more frequent (but not necessarily more severe) epidemics. Potential interactions between arboviruses and hematozoans deserve closer scrutiny.

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Detection of lymphatic Wuchereria bancrofti in carriers and long-term storage blood samples using semi-nested PCR

Kanjanavas

Tan‐ariya

Khawsak

et al. 2005

Molecular and Cellular Probes

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Simple blood-spot sampling with nested polymerase chain reaction detection for epidemiology studies on Brugia malayi

Cited by 6 publications

References 8 publications

Lymphatic Filariasis in Mainland Southeast Asia: A Systematic Review and Meta-Analysis of Prevalence and Disease Burden

Lymphatic Filariasis in Mainland Southeast Asia: A Systematic Review and Meta-Analysis of Prevalence and Disease Burden

Simulation Models Examining the Effect of Brugian Filariasis on Dengue Epidemics

Detection of lymphatic Wuchereria bancrofti in carriers and long-term storage blood samples using semi-nested PCR

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