Den indeholder dele af to hesteinfluenzastammer, der er indsat i hver sin canarypox vektorvirus, og et tetanustoksoid (kemisk svækkede toksiner fra stivkrampebakterien).
It contains parts of two equine influenza (flu) strains, which have been inserted into two canarypox vector viruses respectively, and a tetanus toxoid (chemically weakened toxins from the tetanus bacterium).