Swarna Bindu Prashana is an Ayurvedic technique to improve immunity in children. It is a method of administering gold calx (Swarna Bhasma) in very minute quantities to improve immunity, strength, memory and intelligence in children. The original reference for this technique is mentioned in Kashyapa Samhita. The purpose of Suvarna-Prashan is same as of modern vaccination to prevent diseases by building immunity against bacteria and viruses. Swarna Prashana is effective for precluding upper respiratory tract infections and preventing common cold and flu. It can also prevent other diseases later in the life. This concept has no limitation only to bacterial or viral infections.