What is the prevalence of Febrile infection-related epilepsy syndrome - FIRES?

Febrile infection-related epilepsy syndrome (FIRES) is an ultra-rare, catastrophic form of new-onset refractory status epilepticus that occurs in previously healthy individuals following a febrile illness. Because FIRES is often misdiagnosed or under-reported, the exact prevalence remains unknown, but it is estimated to affect approximately 1 in 1,000,000 people, primarily within the pediatric population.

How common is Febrile infection-related epilepsy syndrome - FIRES?

As an ultra-rare condition, Febrile infection-related epilepsy syndrome (FIRES) lacks precise global prevalence data. Epidemiological studies suggest the incidence is extremely low, though it is likely underrepresented in medical literature due to the diagnostic complexity of distinguishing it from other inflammatory encephalopathies. Currently, 65 individuals living with Febrile infection-related epilepsy syndrome - FIRES have joined the DiseaseMaps.org community, providing a vital real-world perspective on this rare condition that clinical literature struggles to capture at scale.

What is the typical age and gender distribution of FIRES?

Febrile infection-related epilepsy syndrome (FIRES) most commonly presents in school-aged children, typically between the ages of 3 and 15, although rare cases in adults have been documented. Clinical data does not currently show a significant gender predisposition, as Febrile infection-related epilepsy syndrome - FIRES appears to affect males and females with similar frequency. There is no clear evidence of geographic or ethnic clustering, suggesting that the syndrome occurs globally across diverse populations.

Why is gathering accurate data on FIRES challenging?

Accurate reporting for Febrile infection-related epilepsy syndrome - FIRES is hindered by several factors:

• Diagnostic Delay: The rapid onset and severity of seizures often lead to initial misdiagnosis as other forms of status epilepticus.


• Lack of Biomarkers: There is no definitive blood or genetic test to confirm Febrile infection-related epilepsy syndrome - FIRES, making it a diagnosis of exclusion.


• Reporting Bias: Because it is an ultra-rare syndrome, many cases may be treated in local hospitals without being captured in centralized rare disease registries.

Next steps

• Consult a pediatric neurologist or epileptologist who specializes in refractory status epilepticus.


• Join the Febrile infection-related epilepsy syndrome - FIRES community on DiseaseMaps.org to connect with others sharing similar clinical journeys.


• Inquire with your medical team about participating in clinical research registries to help improve future epidemiological data.

Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): FIRES.


• Orphanet: Rare disease database entry for Febrile infection-related epilepsy syndrome.


• Epilepsy Foundation: Information on New-Onset Refractory Status Epilepticus (NORSE) and FIRES.


• PubMed Central: Peer-reviewed clinical reviews on the incidence and pathophysiology of FIRES.