Lymph is a fluid that circulates throughout the body in the lymphatic system. It forms when tissue fluids/blood plasma (mostly water, with proteins and other dissolved substances) drain into the lymphatic system. It contains a high number of lymphocytes (white cells that fight infection).
Puppies normally get their first shots around 8 weeks old, but they can be given earlier if needed (ie with stray, abandoned pups or those who were formula fed). Three sets of combination vaccinations (a shot that protects against more than one disease) given at 3 week intervals. 8 weeks - first round.
10 to 12 Weeks. Three to four weeks after his initial vaccination, your puppy will be given his second round of the core vaccinations. Since these immunizations do not last long in the puppy's system, they need to be boosted through these vaccinations for the first few months.