Testing blood-sample patterns to identify the cause of fever
Part of Infections clinical trials.
This study looks at changes in blood to figure out what infection is causing a person’s fever (or, for some participants, to compare with people without fever). It may help doctors learn faster ways to identify infections and target the right treatment.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Be between 15 and 65 years old (or 2 to under 15 for the pediatric part).
- Be able to consent (or have a parent/guardian help for younger participants) and agree to a follow-up phone call at 14 days.
- If joining as a fever participant: you have a recent fever for 3–14 days without clear symptoms pointing to one specific cause, or you recently had enteric fever confirmed by a blood test.
- You may have had recent antibiotic medicines (this does not automatically rule you out).
- If joining as a non-fever control: you currently have no reported fever and your temperature is within normal range.
- You should not have certain conditions (like immune system diseases, active cancer, or active long-term infections) or be recently vaccinated/treated with antibiotics if you’re enrolling as a control.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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