Japan scientists create rapid test for tick-borne SFTS virus
Researchers at the University of Osaka, together with Fujita Health University and the University of Miyazaki, are developing a fast diagnostic kit for severe fever with thrombocytopenia syndrome (SFTS), a deadly tick-borne illness with a mortality rate of 10–30%, Qazinform News Agency cites Kyodo.
The kit is designed to provide same-day results at clinics, unlike current PCR tests that take hours.
The testing method uses an immunochromatographic approach, similar to pregnancy or flu tests, with results visible after applying a blood serum sample.
Since 2013, cases have been concentrated in western Japan, but in 2025 infections were also reported in Gifu, Ibaraki, and Hokkaido, showing expansion.
More than 100 cases have been reported annually in recent years, with elderly people accounting for many of the infections.
The antiviral drug Avigan is available but must be administered early to be effective.
The virus can infect animals such as cats, raising risks for pet owners and veterinarians.
Project leader Takayuki Yoshioka cautioned: “It’s only a matter of time before it spreads nationwide.” He added that development is now in the practical application stage, with completion expected within 1–2 years.
The University of Osaka also plans to develop a vaccine against SFTS, aiming to reduce fatalities and strengthen Japan’s preparedness against this expanding public health threat.
As written before, four tick-borne encephalitis cases recorded in Akmola region, Kazakhstan.
