New York : The polio virus can continue to transmit silently for more than three years with no reported cases, says a study that suggests continued surveillance even after eradication of the disease.To ensure that
Shimla: Himachal Pradesh Chief Minister Virbhadra Singh Sunday launched the second phase of pulse polio immunisation drive in the state by administering polio drops to a child at Jwalamukhi in Kangra district.Briefing the chief minister,
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