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Veterinary Manual
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VETERINARY PET

Virulent Newcastle Disease Outbreak in California Spreads to Commercial Flock

News
01/08/19 By
Merck 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 Merck 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?

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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