Here a typical case scenario of what happens:
You are bringing your new puppy home. A stressful time for any puppy: loosing litter mates, new surroundings, strange people, other pets, places, new smells, noises. All new, scary and stressful.
The next day-, or even earlier, the scheduled appointment with the vet- a stressful ride, again another place, strange smells, more big and small animals.
By the time your puppy gets to be put on the vets table, it is clearly stressed to the max, and it may have even came down with stress diarrhea over night.
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The vet will perk around his/ her little butt, gets a stool sample, and determines after a little while that it has worms,and-, or giardia, and,- or coccidiosis, and give the puppy right away a worm treatment (pesticide), and medications for the other 2 bugs (more poison). The doctor then discovers a flea, or only a spec of possible flea poop near the tail set, and pulls out a topic flea treatment, which kills fleas and more, ( it kills just about everything, including your saved up budget for the pup)
And, before you leave he will vaccinate your puppy , most likely with 5 ingredients in one single dose; not only that, it is the same amount of a dose, a Great Dane, Bull Mastiff, or Rottweiler would get, while you are only having in this case a tiny Papillon puppy, or another Toy breed.
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Review on Hills Science Diet
Not to speak of the substantial vet bill, do you really still think your puppy is given a good start in terms of health, and well being? Think again!!
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I posted a few links here for you, there is much-, much more information out there about these subjects. Please take your time to educate yourself so your puppy does get a good start in life. Do not let that be up to your vet alone, it is on the end your responsibility . Take charge yourself- the only way to do this right.
Puppy Vaccination Mistakes
The Truth About Dog Vaccinations
How Often Should You Vaccinate Your Cat Or Dog
Over Vaccination Dog Owners Beware
Safer Rabies Vaccination
Lifelong Immunity And the AAHA Revaccination Guidelines