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Seoul virus (SEOV)

Seoul virus circulates wherever its rat reservoirs do — effectively global. Outbreaks have been reported in pet-rat fanciers in the US and UK and in urban populations near port infrastructure. It causes a milder HFRS than Hantaan virus.

Virus codeSEOV
Full nameSeoul virus (SEOV)
Clinical syndromeHaemorrhagic Fever with Renal Syndrome (HFRS, mild)
ICD-10 codeA98.5
Reservoir speciesRattus norvegicus (brown rat), Rattus rattus (black rat)
Endemic regionsWorldwide via global Rattus distribution
Case-fatality rate1 to 2 percent
Person-to-personNo documented person-to-person transmission.

About Seoul virus (SEOV)

Seoul virus circulates wherever its rat reservoirs do — effectively global. Outbreaks have been reported in pet-rat fanciers in the US and UK and in urban populations near port infrastructure. It causes a milder HFRS than Hantaan virus.

Surveillance and outbreaks

HORIZON ingests every WHO Disease Outbreak News bulletin, ECDC weekly Communicable Disease Threats Report, CDC HAN advisory, PAHO update, and peer-reviewed publication that mentions SEOV. Browse the live article feed or hit the JSON API for the raw data. Active incidents involving this serotype appear on the live outbreak map.

Authoritative sources

Related serotypes

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Sin Nombre virus (SNV)

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Puumala virus (PUUV)

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Hantaan virus (HTNV)

Haemorrhagic Fever with Renal Syndrome (HFRS) · CFR 5 to 15 percent

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Bayou virus (BAYV)

Hantavirus Pulmonary Syndrome (HPS) · CFR approximately 33 percent

Bayou virus is a New World hantavirus first identified in Louisiana in 1994. It produces HPS with prominent renal involvement and is carried by the marsh rice rat across the Gulf C…

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