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.
Scheduling Shots. In the first three months of your puppy's life, your veterinarian will probably want to see your puppy every two or three weeks for vaccinations. Initial vaccinations for many diseases start at about six weeks and are repeated every two to three weeks until your puppy reaches 14 weeks of age. Booster Shots.