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Virulent Newcastle Disease Outbreak in California Spreads to Commercial Flock

08/01/19 By
MSD Veterinary Manual

An outbreak of virulent Newcastle diseases that began in backyard chickens in May 2018 has now been confirmed in a commercial flock in southern California. USDA confirmed that this is the first such outbreak in a commercial flock since 2003.

Read more about the spread of Newcastle disease to a commercial chicken flock in Feedstuffs. 

More information on Newcastle disease is available in the MSD Veterinary Manual.

Test your knowledge
Mastitis in Cattle
Mastitis in dairy cows is most commonly caused by a bacterial infection. The sources of these infections are typically environmental or contagious. Which of the following organisms is most likely to be spread between cows via aerosol transmission?