Could prophylactic antivirals reduce dengue incidence in a high-prevalence endemic area?

Prophylactic drugs against dengue are currently under development. In this study, we explored how such prophylactic approaches might affect dengue cases in four communes of Nha Trang City, Vietnam. A community level dengue transmission survey indicated high levels of previous exposure to dengue (89....

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Main Authors: Yalda Jafari (Author), Oliver J Brady (Author), Joseph R Biggs (Author), Le Thuy Lien (Author), Huynh Kim Mai (Author), Hien Anh Thi Nguyen (Author), Marnix Van Loock (Author), Guillermo Herrera-Taracena (Author), Joris Menten (Author), Chihiro Iwasaki (Author), Mizuki Takegata (Author), Noriko Kitamura (Author), Hung Do Thai (Author), Bui Xuan Minh (Author), Kouichi Morita (Author), Dang Duc Anh (Author), Sam Clifford (Author), Kiesha Prem (Author), Julius Hafalla (Author), W John Edmunds (Author), Lay Myint Yoshida (Author), Martin L Hibberd (Author), Stéphane Hué (Author)
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Published: Public Library of Science (PLoS), 2024-07-01T00:00:00Z.
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100 1 0 |a Yalda Jafari  |e author 
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700 1 0 |a Joseph R Biggs  |e author 
700 1 0 |a Le Thuy Lien  |e author 
700 1 0 |a Huynh Kim Mai  |e author 
700 1 0 |a Hien Anh Thi Nguyen  |e author 
700 1 0 |a Marnix Van Loock  |e author 
700 1 0 |a Guillermo Herrera-Taracena  |e author 
700 1 0 |a Joris Menten  |e author 
700 1 0 |a Chihiro Iwasaki  |e author 
700 1 0 |a Mizuki Takegata  |e author 
700 1 0 |a Noriko Kitamura  |e author 
700 1 0 |a Hung Do Thai  |e author 
700 1 0 |a Bui Xuan Minh  |e author 
700 1 0 |a Kouichi Morita  |e author 
700 1 0 |a Dang Duc Anh  |e author 
700 1 0 |a Sam Clifford  |e author 
700 1 0 |a Kiesha Prem  |e author 
700 1 0 |a Julius Hafalla  |e author 
700 1 0 |a W John Edmunds  |e author 
700 1 0 |a Lay Myint Yoshida  |e author 
700 1 0 |a Martin L Hibberd  |e author 
700 1 0 |a Stéphane Hué  |e author 
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520 |a Prophylactic drugs against dengue are currently under development. In this study, we explored how such prophylactic approaches might affect dengue cases in four communes of Nha Trang City, Vietnam. A community level dengue transmission survey indicated high levels of previous exposure to dengue (89.7%; 95% CI: 87.2,92.0). We fitted a spatially explicit model to an observed outbreak and simulated likely effectiveness of Case-Area Targeted Interventions (CATI) and One-Time Mass Distribution (OTMD) of drug and vector control strategies. Increasing radius and effectiveness and decreasing delay of CATI was most effective, with drugs being more effective in averting dengue cases than vector control. Using an OTMD approach early in the outbreak required the least number of treatments to avert a case, suggesting that OTMD strategies should be considered as pre-emptive rather than reactive strategies. These findings show that pre-emptive interventions can substantially reduce the burden of dengue outbreaks in endemic settings. 
546 |a EN 
690 |a Arctic medicine. Tropical medicine 
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690 |a Public aspects of medicine 
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786 0 |n PLoS Neglected Tropical Diseases, Vol 18, Iss 7, p e0012334 (2024) 
787 0 |n https://doi.org/10.1371/journal.pntd.0012334 
787 0 |n https://doaj.org/toc/1935-2727 
787 0 |n https://doaj.org/toc/1935-2735 
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