This is all way over my head.
I bet Monteria could straighten this one out
Hey, Don't throw me in the middle
Seriously though, the point of his questions are being lost for the detail......
1) parvo can live in the ground but what you describe is not conducive so I wouldn't be concerned. When you are talking about parvo that lives in the soil, think Anthrax..... It can live in dry ground and spread after a rain BUT, it is not naturally occurring in soil nor can it live there indefinitely. Unless you have had parvo on the yard in the last year or so, I would have zero concern.
2) Mostly I agree with Bryant here.... I think it is rare that introduction of Ivermec will kill a dog HOWEVER, the possibility does exist IF the dog has a massive infestation. Personally, I subscribe to the Bryant method too but I don't ever advise that others do...... Only because I don't want to be responsible for that 1 out of 1000 that it does kill.
3) 5,6,7 or 8 way shots should be given on a set schedule. Everyones schedule varies a little and mine is Vanguard Puppy+ 5 way; 1 at 6 weeks, 1 at 10 weeks, 1 at 14 weeks. That being said, if your pups are already 5 months and have not been vaccinated, I would just give them one shot and be done with it...... They have already outgrown the most susceptible time of its life. I also DO NOT give yearly parvo boosters. The only other vaccination that you have to worry about is Rabies. I do not give Rabies shots until the dog is 1 year old and I never booster. State requirements be damned. I honestly believe that Rabies shots have the potential to induce aggression in dogs who are vaccinated to young or too often.
That being said, my thing is nutrition and bio, not vaccinations.....
Steve
