Why do some children get repeated infections?

Infants who start developing infections at an early age around 6-8 months when their maternal immunity wears off are more likely to develop recurrent infections. It is unclear why this happens but is thought to be due to bacteria colonising the back of the nose or middle ear

What factors increase the risk of ear infections?

The most significant factor is other children, and those children in nursery/daycareare more likely to develop recurrent infections

Can ear infections be serious?

Yes ear infections can potentially be very serious. If one imagines how close the middle ear is to the brain, there is a risk of infection spreading and causing serious complications such as mastoiditis or brain abscesses, but these are extremely rare. However you should always take your child to your GP, Paediatrician or ENT surgeon to be checked.