Myxomatosis Case Reports

If you are a vet with a patient with Myxomatosis or a rabbit guardian whose rabbit has been diagnosed with Myxomatosis, please email us at

Myxomatosis is a reportable disease in California. The California Department of Food and Agriculture’s Animal Health Branch tracks outbreaks. Tracking myxomatosis outbreaks teaches us more about the disease and how to prevent it. Please report cases to the CDFA’s animal health branch at 916-900-5002.

If you are a vet in California, please submit deceased rabbits suspected of Myxomatosis for necropsy with a CAHFS state lab (fee $135) or report confirmed Myxomatosis cases to the California Department of Food and Agriculture (CDFA):

We want to thank Dr Hilary Stern, DVM, DABVP for her many Myxomatosis reports.


02/06/202395032Los GatosSanta ClaraReported by Dr. Hilary Stern
08/17/202395060San JoseSanta ClaraReported by Dr. Hilary Stern
09/20/202395060Santa CruzSanta CruzReported by Dr. Hilary Stern
10/11/202395065Santa CruzSanta CruzReported by Dr. Hilary Stern
10/16/202395019FreedomSanta Cruz
11/4/2023Orinda/Tilden Regional ParkContra Costa(news report in San Jose Mercury News and another article in Berkeleyside)
7/5/2022Los Altos HillsSanta Clara
8/5/2022Mountain ViewSanta Clara
9/6/2022Boulder CreekSanta Cruz
9/27/2022Ben LomondSanta Cruz
10/19/2022CupertinoSanta Clara
11/6/2022Los AltosSanta Clara
8/13/2021Los GatosSanta Clara6-year-old Male neutered N lop
8/16/2021San JoseSanta Clara6-month-old Male rabbit
9/21/2021Santa CruzSanta Cruz1-year-old Male Neutered rabbit
11/15/2021Santa CruzSanta Cruz6-month-old Female Spayed rabbit
1/2020WatsonvilleSanta CruzReported by Santa Cruz County Animal Shelter, biopsy confirmed by CAHFS
2/2020Scotts ValleySanta Cruz
8/2020FeltonSanta CruzReported by Dr. Hilary Stern
9/2020Monte SerenoSanta CruzReported by Dr. Hilary Stern
9/2020Boulder CreekSanta CruzReported by Dr. Hilary Stern
10/2020WatsonvilleSanta CruzDr. Lee at East Lake Animal Clinic
10/201995076Montereyreported by Monterey County and Salinas Animal Services
9/2019Redwood CitySan Mateo
95020GilroySanta ClaraPets Vet Gilroy & Adobe Animal Hospital
9/201995013San JoseSanta Clarareported by CAHFS
8/2019Bonny Doon, Watsonville, Ben LomondSanta CruzReported by Dr. Hilary Stern
7/2019Santa Cruz, Boulder CreekSanta CruzReported by Dr. Hilary Stern
7/2019San Luis Obispo 
7/2019Buelton & Santa BarbaraSanta Barbara
9/2018Sonoma Countyreported by CDFA
8/2017AromasMonterey, San BenitoReported by Dr. Hilary Stern
6/2017Los GatosSanta Clarareported by guardian & Dr. Curt Nakamura
6/2017Santa Barbara
7/2017Santa Barbara
8/2017Santa Barbara
8/2017Santa Barbara
9/2016San Luis Obispo
9/2016Santa Cruz
7/2016Santa Cruz
7/2016Santa Cruz
8/16Santa Barbarareported by CDFA
7/16Santa Barbarareported by CDFA
Santa Barbarareported by CDFA
Santa Cruz
Santa Cruz
MontereyReported by AFRP’s Rescue Rabbits Rock
2010San Gabriel ValleyLos Angeles

Note: additional report in Baja California (Mexico): 1993



7/27/2022 – Yamhill County
8/2/2022 – Yamhill County
8/8/2022 – Lane County
8/19/2022 – Douglas County
8/26/2022 – Lane County
9/1/2022 – Washington County
9/2/2022 – Lane County
9/8/2022 – Washington County

2016 Douglas County

2015 Polk County

2010 Western Oregon

2004 Linn & Benton counties

2003 Linn & Benton counties

  • Paige K Parsons

    Paige has been a house rabbit educator for over 25 years. Her education efforts began when she designed and created in 1994. She is currently a live concert photographer and previously was a user experience designer. She lives with her husband, Carl, and her two house rabbits, Moe and Mimzy.

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