1 / 5 Researchers have used the body’s own immune cells to develop a nano-vaccine against COVID-19, according to a new study conducted in mice.2 / 5Unlike currently used vaccines, which use synthetic materials or adenovirus to package and deliver antigens, the researchers from Indian Institute of Technology (IIT), Delhi have taken a step forward towards next-generation vaccine for COVID-19, the study said.3 / 5According to the study, this naturally derived nano-vaccine developed by the researchers could have several advantages over currently approved vaccines.4 / 5It will minimise the chance of blood clotting, which was otherwise observed in vaccinated individuals, the study said.5 / 5Since the onset of the COVID-19 outbreak, scientists from around the world have been studying the disease and its epidemiology to develop effective vaccines. The immune response elicited by this vaccine was tested in mice.