The world is bracing for another outbreak of pleurisy, the rare birth defect that affects one in every 50,000 babies.
The disease, which can cause nerve damage to the back of the head, is one of the world-wide causes of blindness.
It affects women as well as men, and has been linked to other medical conditions.
The outbreak has affected more than 1 billion people worldwide, including more than 2 million in India, where the disease is endemic.
The government has imposed a nationwide curfew, imposed travel restrictions and declared a state of emergency.
The country’s Chief Medical Officer, S Rangarajan, said on Wednesday that the country’s response was “very rapid”.
He said the virus is being tracked, but no new cases have been reported.
Experts have said the pandemic could last for months or even years.
The World Health Organization (WHO) says the death toll from the disease has climbed to 2,917.