Puppy boarding: how young is too young?

A puppy starts life with antibodies from its mother, and those fade over the first months. Vaccination is timed to take over as they do, but the handover is not instant, and there is a window where maternal protection has dropped while vaccine-derived protection is not yet complete.

That window is the whole reason for the rule. Parvovirus and distemper are serious in puppies, and kennel cough hits them harder than it hits healthy adults, with a greater chance of progressing to something worse. The American Kennel Club's veterinary explainer on kennel cough sets out why young dogs sit in the higher-risk group.

A boarding house is, by design, the environment where those things spread most efficiently: unfamiliar dogs, shared air, shared surfaces. A minimum age is the cheapest control an operator has.

• Same food, portioned by meal. A diet change on top of a new environment causes an upset stomach almost every time.
• Familiar bedding, unwashed. Smell does more than any toy.
• A trial day first. One daytime session at the same place, a couple of weeks before.
• The routine, written down. Meal times, toilet intervals, the word you use, what the puppy is scared of.

Because barely anyone searches this exact phrasing in Singapore. We checked, and the volume is negligible. It exists because owners of new puppies genuinely ask the question, and because a boarding site that covers every adult scenario and nothing about young dogs has a hole in it. We would rather say that plainly than dress a low-traffic page up as a keyword win.