The next phase of COVID-19 vaccination is scheduled to begin from May 1, but with many states flagging supply shortages, it seems that people under the age of 45 might have to wait a little longer. The first shipment of Sputnik vaccines from Russia is also set to arrive in May but with Brazil rejecting the vaccine over quality issues, should we be concerned too, even though Sputnik claims that Brazil's decision is a political one.