VPD Surveillance
Surveillance is a French word which means ‘watching with attention, suspicion and authority’. Any satisfactory immunization programme should result in gradual decline of the vaccine preventable diseases concerned. The WHO had declared 3 distinct objectives for the year 2000 A.D.However, none of the targets have been achieved so far.
- Polio Eradication
- NNT elimination
- Measles Reduction
It is possible to eradicate poliovirus from the Globe, but it is not possible to eradicate the source of tetanus bacilli which is animal excreta and spores in the soil. However, by immunizing large number of all mothers with TT it is possible to eliminate neonatal tetanus. Although Measles can be eradicated in the future, at the present time the single dose Measles immunization can only prevent Measles mortality by preventing Measles in the vast majority of immunized children.
Dr Marwah
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