Now that it appears that more than one vaccine candidate for Covid-19 will have sufficient efficacy to be approved by regulators, questions are beginning to be asked about how it will be administered, along what timeline, at what cost, and at whose expense. These are essential questions, and the answers should be informed by a careful analysis of the available evidence by independent impartial experts. Prime Minister Narendra Modi, when addressing a group of chief ministers last week, indicated that a “national expert group” had been constituted and it included not only scientists but also bureaucrats to co-ordinate the vaccine roll-out. The Union government has indicated that its initial priorities for vaccination will be 10 million health workers, followed by 20 million “front line” workers, such as the police and municipal workers. This differs slightly from some other roll-out plans — in the United Kingdom, for example, the first shots are being given to those most at risk from the disease, namely the people above 75. Many questions are unanswered. For example, will all private health care workers be eligible for the vaccine, or only the public ones? Will temporary employees in the health care industry be eligible, or only those with permanent jobs?

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