For other uses, see Vaccine (disambiguation). A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.
[ 2 syll. e-gil, eg-il ] The baby boy name Egil is pronounced as EH-GahL â . Egil is primarily used in Scandinavian and it is of Old Norse origin. Original forms of the name include Aghi (Old Norse) and Egill (Old Norse).
Leif Ericsson is perhaps the best known of all the ancient medieval Vikings. There is confusion about how to correctly spell his name. The most common spellings are Leif Ericsson, Leif Ericson, Leif Eriksson, Leif Erikson, or Leifur Eiriksson.He was a Viking explorer who lived from approximately 970 AD to 1020 AD.eif Ericsson is perhaps the best known of all the ancient medieval Vikings. There is confusion about how to correctly spell his name. The most common spellings are Leif Ericsson, Leif Ericson, Leif Eriksson, Leif Erikson, or Leifur Eiriksson.