Necrotizing enterocolitis, usually called NEC, is a condition where the intestines become infected and can begin to die. The disease usually affects premature babies, although term babies may also get NEC. Necrotizing enterocolitis is a serious condition that may require surgery, and has a high morbidity and mortality rate.
Bordetella vaccines are given to puppies at about 12 to 18 weeks. According to Doodle Dog Shop the Bardatella vaccine is optional at 6-8 weeks. There are three year rated rabies virus such as Imrab-1 that can be given to puppies at twelve to sixteen weeks as well.
He'll get the last combination injection at 16 weeks. Your vet will add the rabies vaccine at either 12 or 16 weeks, depending on your local laws. If you will be boarding your dog or frequenting dog parks, your vet may recommend a Bordetella, or kennel cough, injection.