In order to create a vaccine for the A.E. Virus, Annex 1 heads to Mars. Akari and the other crew members try to enjoy their time on the ship before they land on Mars for the life-threatening mission.
so they must live off their host to breed.
‫لذا يتوجب عليها العيش على حساب الكائن المستضيف لها كي تتكاثر
also sind sie für ihre
Vermehrung vom Wirt abhängig.
y necesitan alojarse en un organismo vivo.
y necesitan alojarse en un organismo vivo.
Ils doivent donc parasiter
des cellules pour se multiplier.
quindi devono sfruttare le cellule 
dell'organismo che li ospita.
então não conseguem viver 
se não tiverem as células do hospedeiro.