In a vaccination campaign, we want to immunise everyone against a particular disease, he said.
“If there is a need for a booster dose it will be told. There are studies that are going on. Covaxin trial is going on whether it (booster dose) should be taken after six months or not,” he said.
“Just follow the guidelines, take two doses and continue with Covid-appropriate behaviour. You are safe from serious disease but be careful. The protection is not totally 100 per cent.
“Once the need for a booster and the timing of booster will be known, those guidelines and provisions will be communicated,” he said.