Most of the cases are in two states.There were nearly 300 cases traced to the P3 virus in Uttar Pradesh and about 140 in neighboring Bihar last year.

• 去年大多数病例发生在两个邦，有大约300例丙型小儿麻痹症病例发生在北方邦，还有大约140个病例发生在邻近的比哈尔邦。