4. The vaccine used will be the live, attenuated influenza vaccine (LAIV) i.e Flumist® by AstraZeneca. As the egg allergen (ovalbumin) content in LAIV is comparable to the intramuscularly administered vaccine and that the risk of allergic reaction with TIV has been shown to be very low when administered in a single dose, the intranasal vaccine Flumist® will be administered by the nurse or doctor in a single dose of 0.2ml intranasally, as recommended by the manufacturer. This vaccination will be followed by a 60 minute observation period. We will examine the child 60 minutes after vaccination and at any time if the child, parent or personnel suspects an allergic reaction or adverse effect.