B – people under 65 years of age, including children with:
- cardiovascular disease (ischaemic heart disease, congestive heart failure, rheumatic heart disease, congenital heart disease, cerebrovascular disease)
- chronic respiratory disease (asthma if on regular preventive therapy; other chronic respiratory disease with impaired lung function)
- diabetes
- chronic renal disease
- any cancer, excluding basal and squamous skin cancers if not invasive
- other conditions (autoimmune disease, immune suppression, human immunodeficiency virus (HIV), transplant recipients, neuromuscular and central nervous system diseases, haemaglobinopathies, children on long term aspirin).
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