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. Author manuscript; available in PMC: 2015 May 8.
Published in final edited form as: Expert Rev Vaccines. 2009 Sep;8(9):1251–1276. doi: 10.1586/erv.09.77

Table 1.

Pet ownership in the USA and veterinary expenditures.

Parameter Dogs Cats Birds Horses
Number of households owning 43,021,000 37,460,000 4,453,000 2,087,000
Average number owned
Per household		 1.7 2.2 2.5 3.5
Total number in the USA 72,114,000 81,721,000 11,199,000 7,295,000
Total veterinary expenditure US$16.1 billion US$7.1 billion US$102.8 million US$718.3 million
Expenditure for vaccines 70.2%
(= US$11.2 billion)		 63.7%
(= US$4.52 billion)		 13%
(= US$13.36 million)		 49.3%
(= US$210.46 million)

Data taken from [6].