Even when people with CGD take antibiotics and anti-fungal medicines every day, they can still get infections. On average, these people will have one serious infection every three to four years, although this varies from person to person.

Many people also have frequent minor infections. About half of all people with CGD have chronic inflammation of the gums (gingivitis) and three-quarters have frequent ulcer-like sores in the mouth. Although these infections are not life threatening, they can be annoying and uncomfortable.

Staying infection-free is important for helping keep you out of hospital and going about your daily life, doing what you want to do. However, it is also important because what happens to you now can make a difference to your health throughout your life.

Preventing infection involves taking your medication and having appropriate vaccinations as well as having regular checks. It also means avoiding situations which put you at extra risk of infection.