Challenges for ticks and tick-borne diseases research in Southeast Asia: Insight from the first international symposium in Cambodia

by Sony Yean, Didot Budi Prasetyo, Sebastien Marcombe, Upik Kesumawati Hadi, Abdul Rahman Kazim, Sonthaya Tiawsirisup, Vu Duc Chinh, Keita Matsuno, Van Lun Low, Sarah Bonnet, Nathalie Boulanger, Tommy Tsan-Yuk Lam, Mohammad Yazid Abdad, Vincent Herbreteau, Jean-Marc Chavatte, Samuth Sum, Theary Ren, Anavaj Sakuntabhai, Pierre-Olivier Maquart, Antsa Rakotonirina, Sebastien Boyer

Ticks, as critical vectors of a variety of pathogens, pose a significant public health challenge globally. In Southeast Asia (SEA), ticks are responsible for transmitting a diverse array of pathogens affecting humans and animals. The geographical and ecological diversity of SEA provides a unique environment that supports a wide range of tick species, which complicates the management and study of tick-borne diseases (TBDs).

This article synthesizes findings from the first international symposium on ticks and TBDs in Southeast Asia, held in Phnom Penh on June 22 and 23, 2023. It highlights regional efforts to understand tick ecology and pathogen transmission.This paper proposes to present a summary of the various presentations given during the symposium following 3 main parts. The first one is devoted to the state of knowledge regarding ticks and TBDs in SEA countries, with presentations from 6 different countries, namely Cambodia, Indonesia, Laos, Malaysia, Thailand, and Vietnam. The second part focuses on the development of new research approaches on tick-borne pathogens (TBPs) and TBDs. The last part is a summary of the round table discussion held on the final day, with the aim of defining the most important challenges and recommendations for researches on TBP and TBD in the SEA region.

Key topics discussed include advancements in diagnostic tools, such as MALDI-TOF MS and proteomics, and the development of sustainable strategies for tick management and disease prevention. The symposium facilitated the exchange of knowledge and collaborative networks among experts from various disciplines, promoting a unified approach to tackling TBDs in the region. The symposium underscored the need for enhanced surveillance, diagnostics, and inter-regional cooperation to manage the threat of TBDs effectively. Recommendations include the establishment of a regional database for tick identification and the expansion of vector competence studies. These initiatives are crucial for developing targeted interventions and understanding the broader implications of climate change and urbanization on the prevalence of TBDs.