Double-Stranded RNA-Based Method for Diagnosing Severe Fever with Thrombocytopenia.

Area of Science:

• Virology
• Molecular Diagnostics
• Infectious Diseases

Background:

• Severe Fever with Thrombocytopenia Syndrome (SFTS) presents with non-specific symptoms, complicating early diagnosis.
• Distinguishing SFTS from other febrile illnesses with similar presentations is clinically challenging.
• There is a need for rapid and accurate diagnostic tools for SFTS.

Purpose of the Study:

• To investigate the potential of blood double-stranded RNA (dsRNA) levels as a diagnostic biomarker for SFTS.
• To evaluate the utility of dsRNA quantification in differentiating SFTS from other conditions.
• To explore the correlation between dsRNA levels and SFTS infection severity.

Main Methods:

• Quantitative analysis of total dsRNA expression in blood samples from SFTS patients, healthy controls, and patients with scrub typhus.
• Utilized a spiropyran-based method for dsRNA quantification.
• Comparative analysis of dsRNA levels across different study groups.

Main Results:

• Significantly elevated blood dsRNA levels were observed in SFTS patients compared to healthy and scrub typhus controls.
• The dsRNA levels demonstrated potential for assessing SFTS infection severity.
• The spiropyran-based method proved effective in quantifying dsRNA.

Conclusions:

• Total blood dsRNA expression serves as a promising, rapid, and convenient biomarker for SFTS diagnosis.
• This method can effectively differentiate SFTS from non-viral conditions with overlapping clinical symptoms.
• The findings support the development of dsRNA-based diagnostics for SFTS.