Mr Choubey was responding to a question on the status of launching a nasal vaccine for COVID-19. Most vaccines are administered by injection through intramuscular or subcutaneous route. But, intranasal vaccines are administered as a nasal spray and offer a needle-free approach for vaccine administration, Mr Choubey said in a written reply. It is the latest sign of the power of the Covid-19 vaccines: The number of new cases is declining, often sharply, in countries that have vaccinated a large share of residents. That's the situation in Israel, the United Arab Emirates and Britain. Cases are also declining in the U.S., which is not as far along as those three countries but is well ahead of most.