WHO: Ten threats to global health in 2019 (2) Dengue

25 January, 2019

Dear HIFA colleagues,

Last week WHO named the top 10 threats to global health in 2019

http://www.hifa.org/dgroups-rss/who-ten-threats-global-health-2019

Among these is Dengue, so it is timely that the current print issue of The Lancet has an in-depth 14-page review on the subject.

Citation and summary below. Full text here: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(18)32560-1/fulltext (free to access after free registration)

CITATION: Prof Annelies Wilder-Smith, Prof Eng-Eong Ooi, Olaf Horstick, Prof Bridget Wills.

Seminar: Dengue

The Lancet, ISSN: 0140-6736, Vol: 393, Issue: 10169, Page: 350-363

DOI10.1016/s0140-6736(18)32560-1

SUMMARY

Mortality from severe dengue is low, but the economic and resource burden on health services remains substantial in endemic settings. Unfortunately, progress towards development of effective therapeutics has been slow, despite notable advances in the understanding of disease pathogenesis and considerable investment in antiviral drug discovery. For decades antibody-dependent enhancement has been the prevalent model to explain dengue pathogenesis, but it was only recently demonstrated in vivo and in clinical studies. At present, the current mainstay of management for most symptomatic dengue patients remains careful observation and prompt but judicious use of intravenous hydration therapy for those with substantial vascular leakage. Various new promising technologies for diagnosis of dengue are currently in the pipeline. New sample-in, answer-out nucleic acid amplification technologies for point-of-care use are being developed to improve performance over current technologies, with the potential to test for multiple pathogens using a single specimen. The search for biomarkers that reliably predict development of severe dengue among symptomatic individuals is also a major focus of current research efforts. The first dengue vaccine was licensed in 2015 but its performance depends on serostatus. There is an urgent need to identify correlates of both vaccine protection and disease enhancement. A crucial assessment of vector control tools should guide a research agenda for determining the most effective interventions, and how to best combine state-of-the-art vector control with vaccination.

Best wishes, Neil

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HIFA profile: Neil Pakenham-Walsh is coordinator of the HIFA global health campaign (Healthcare Information For All - www.hifa.org ), a global community with more than 19,000 members in 177 countries, interacting on six global forums in four languages. Twitter: @hifa_org FB: facebook.com/HIFAdotORG neil@hifa.org