Does the mother shots hold up in a pup till 14 weeks, then they would only require 2nd set then?

Asking for a friend cause she bought this lil guy and that is what he told her- so he has no shots as of yet?

I have never heard of only giving one vac to a pup, it is thought that the dams antibodies last till 6-8 weeks this may vary depending on the age that they stopped getting milk from the dam so I give vacs at 9 and 12 weeks, some countries give 3 or 4 sets to be sure they take and not be destroyed by any maternal antibodies.

One breeder of my breed lost a pup at 6 months so now titre tests before starting the vacs when the levels have dropped, she has found quite a variation from pup to pup and litter to litter.

My bitches will suckle pups for way past the normal time.  So I won't have any of my pups vaccinated until they are 12 weeks.  And a second jab two weeks later.

Thanks
Will let my friend no :-)