I read that the Leptospirosis vaccine doesn't cover all of the Lepto strains, so your dog could still get it even if vaccinated, also that it only works for 5-6 months at best and that vaccinated dogs can still carry and pass the disease on to humans even if they don't get sick.
So, in my opinion it's not worth the risk to vaccinate a small dog with this. I like to think I would notice my dog being i'll and take him to the vet. |