Diseases & National Health Programme
The following diseases are amenable to eradication except:
a. Eradication is termination of all transmission of infection by extermination of the infectious agent through surveillance and containment.
b. It is an absolute process, an all or none phenomenon, restricted to termination of an infection from whole world.
c. To date only smallpox has been eradicated. Diseases, which are amenable to eradication, are measles, diphtheria, polio and guinea worm.
d. In 1988, World Health Assembly adopted a resolution for the global eradication of poliomyelitis.
e. Poliomyelitis is eradicable because man is the only host. A long-term carrier state is not known to occur.
f. Half-life of excreted virus in the sewage is about 48 hours and spread can only occur during this period.
g. Oral polio vaccine (OPV) is easy to administer, relatively cheap and is ideally suited for poliomyelitis eradication strategies because the live vaccine virus, by multiplying in intestine can interrupt the transmission of wild polioviruses.
h. Tetanus because it has an extra-human reservoir in cattle, sheep etcmay not be possible to eradicate.