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.
Rabies shots are one of the vaccines you will need to get your new puppy. These shots can be given to puppies that are 16 weeks of age. You will also need to get a vaccine booster when your puppy is a year old. Additional boosters need to be given every three years after the first two Rabies vaccines.