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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Heartwater case, exaggerated blinking and hyperesthesia, cow
Heartwater case, exaggerated blinking and hyperesthesia, cow
Heartwater case, exaggerated blinking and hyperesthesia, cow

    Cow with heartwater showing exaggerated blinking and hyperesthesia.

Courtesy of Dr. Tony Shakespeare.

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Overview of Heartwater

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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