Reemergence of Scrub Typhus Associated with Leptotrombidium akamushi Mites and Karp-Like Orientia tsutsugamushi Genotype Bacteria, Japan, 2024-2025.
Motohiko Ogawa, Nobuhiro Takada, Takashi Katayama et al.
✦ AI-curated · Sources linked
Case in brief
A pregnant woman in Japan developed scrub typhus after attending a fireworks event in August 2024, leading to fetal death. Investigations revealed the presence of Leptotrombidium akamushi mites at the event site, which were found to carry a distinct Karp-like genotype of Orientia tsutsugamushi. This case highlights the reemergence of summer scrub typhus linked to these mites.
What made this case unusual
The case is notable for the identification of a Vietnam-related Karp-like genotype of O. tsutsugamushi, which is typically not associated with L. akamushi mites.
Diagnostic / clinical pearl
Clinicians should consider the possibility of scrub typhus in pregnant women presenting with febrile illness, especially in summer months and after potential exposure to mite habitats.
Why it matters
This case underscores the need for heightened awareness of scrub typhus transmission dynamics, particularly the role of L. akamushi mites in summer outbreaks.