The number of doses required to complete a reinforcing or booster course for a particular IMMUNISATION PROGRAMME for an IMMUNISATION DISEASE. For example, for a reinforcing course of immunisation against Diphtheria, it is recommended that 2 doses be given routinely. Further reinforcing doses may be required at 10 yearly intervals for travellers to diphtheria endemic regions but these would be part of a new reinforcing or booster course. 

This attribute is also known by these names:

Context	Alias
plural	REINFORCING COURSE DOSE NUMBER