Variable IMF3DM : Month of OPV3 immunization
Valid case(s): 2810 (2911.8)
Invalid: 1560 (1361.2)
Children aged 0-4
Source of information
Immunization data from the health facility.
(a) Copy dates for each vaccination from the card. (b) Write '44' in day column if card shows that vaccination was given but no date recorded.