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.
How often they should get them, and how the shots should be given (singly or as combination vaccines). Although the AAHA and AVMA still recommend yearly boosters for all dogs. A lot of research shows that this is not strictly necessary-and can even cause health problems.f you've adopted an older pup or adult dog and don't know their puppy shots history, then the minimum vaccinations you'll need to get them are against Distemper, Parvo and Hepatitis. He/she will need two rounds of shots, given 3 weeks apart.