A pivotal case report from Thailand documents the first confirmed transmission of severe fever with thrombocytopenia syndrome via the brown dog tick, fundamentally challenging established epidemiological models. Research led by Dr. Sarawut Khongwichit from Chulalongkorn University demonstrates that SFTS transmission extends beyond the previously implicated Asian longhorned tick (Haemaphysalis longicornis).
The single-patient case study, published in August 2026, provides comprehensive clinical and laboratory evidence linking Rhipicephalus sanguineus to SFTS virus transmission. This finding introduces significant implications for vector surveillance and control programs throughout Southeast Asia, where brown dog ticks are widely distributed.
The case’s fatal outcome with multiorgan failure underscores the disease’s severity and the urgency of expanded epidemiological monitoring. Public health authorities must now consider broader tick species in surveillance protocols to accurately assess SFTS risk across endemic regions.
Read the full article on GMJ Newsroom.
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