Updated case numbers for EHV-1 outbreak in California

The mechanisms through which EHV-1 produces neurologic disease are not yet understood.
microscopic view of equine herpes virus (EHV-1)
How and why Equine Herpesvirus type-1 causes neurological disease is still unknown.

The Equine Disease Communication Center (EDCC) has posted updated statistics concerning ongoing outbreaks of equine herpes virus, type 1 (EHV-1 ) in California.

EHV-1 most often causes mild-to-moderate respiratory illness (rhinopneumonitis) and fever, but the infection occasionally leads to the life-threatening neurologic disease equine herpesvirus myeloencephalopathy (EHM). The mechanisms through which EHV-1 produces neurologic disease are not yet understood.

Click here to learn more about the neurologic form of EHV-1

Here are the latest EHV counts for California, according to the EDCC:

Orange county location 1: 23 confirmed cases (2 EHM, 21 fever only)

Orange county location 2: 16 confirmed cases (2 EHM, 14 fever/mild signs)

Orange county location 3: 26 confirmed (2 EHM, 24 fevers)

San Mateo county location 1: 40 confirmed cases (4 EHM, 36 fevers)

San Mateo county location 2: 3 confirmed cases (1 EHM, 2 fever)

Riverside county: 35 confirmed cases (3 EHM, 32 fevers)

Santa Clara county:: 2 confirmed cases (2 EHM)

Sonoma County: 1 confirmed (1 EHM)- New Premises 

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