Q:

Ministry of health in collaboration with WHO is working to eradicate polio from Pakistan since 1992 .But still there are few cases of polio identified each year .source of most Polio infection is

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Ministry of health in collaboration with WHO is working to eradicate polio from Pakistan since 1992 .But still there are few cases of polio identified each year .source of most Polio infection is


  1. Clinical carriers
  2. Healthy carriers
  3. Convalescent carriers
  4. Animal source
  5. Soil

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c) Convalescent carriers

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