Vaccine lymph is the fluid substance that is found in the lymphatic system after receiving a vaccine. While there are not many synonyms for this term, some related words that can be used include vaccine serum, immunization fluid, and vaccination lymph. It is important to note that while these terms are related to vaccine lymph, they do not have the exact same meaning. Vaccine lymph is specifically the lymphatic fluid that is produced as a result of receiving a vaccine, whereas vaccine serum refers to the liquid portion of the blood that contains antibodies against a specific disease. Nonetheless, these related terms can be useful when discussing vaccinations and their effects on the body's immune system.