Idiopathic Issues

Canine Vaccine Fact:  Are DHPP and DA2PP vaccines the same thing?

Posted by Lori Hehn on May 9, 2016 at 8:26 AM
Lori Hehn
Lori Hehn is a practicing veterinarian and a contributor and content manager with XPrep Learning Solutions. She has a drive for continual learning and enjoys interacting with veterinary and vet tech students. She also writes veterinary learning books for children.

Technically this canine vaccine is different, but they are kind of the same...  

Both are vaccine acronyms for the viruses they protect against:  

D: Distemper
H -or- A2:   Hepatitis /Adenovirus Type 2
P: Parvo
P: Parainfluenza

In a DHPP vaccine, hepatitis protection is gained by Adenovirus type 1 (the canine hepatitis virus) in the vaccination, and is listed as "H".

In a DA2PP vaccination, hepatitis protection is gained by Adenovirus type 2, which cross protects against the hepatitis causing Adenovirus type 1, and is listed as "A2".

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