All efforts are being made to develop Covid-19 vaccines as rapidly as possible. However, govt fears distrust in public mind about vaccine could derail efforts to protect the population. For this, the Centre is planning a massive awareness campaign by roping in celebrities and political leaders. The govt feels that some adverse effects in vaccine trials could end up fuelling 'vaccine hesitancy' on a wider scale. The health ministry is keen to ensure that vaccines are not subject to adverse publicity.