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Posted : 11/22/2010 6:55:30 PM

I was always under the impression that all shots were done annually. But my new vet says some are annual, but West Nile and Rhino are done every 6 months. Is this common? Not that I don't trust my vet, but I've just never hears of this schedule. Thanks for your response.

TanyaC97

Posted : 11/23/2010 12:07:44 AM

Here if we give West Nile early in the spring you need a fall booster. If given in end of April you are usually ok for the year especially with an early frost.

Depends on where you are located I guess.

danastark

Posted : 11/23/2010 3:11:57 AM

Here in CA we give the 6-way annually and we have the West Nile every 6 mos or annually but apparently you are supposed to continue with whatever you first gave which for us was the 6 mo. type so..... we continue on.

2manyhorses

Posted : 11/23/2010 3:22:15 AM

All core vaccines offer protection for a full year except for West Nile and rhino. West Nile is good for about 4 months and rhino is only good for about 2. If your mosquito season lasts more than 4 months, it is recommended to booster later in the summer. The new West Nile vaccine, PreNile(?) offers protection for a full year. If you travel, show extensively or board in a training barn where horses come and go, it's best to give rhino at 2-3 month intervals.