If you don't like needles, you may be interested in the COVID-19 vaccine being developed at the University of Waterloo. It's being designed for administration as a nasal spray.
Roderick Slavcev, chief scientific officer at Mediphage Bioceuticals Inc. and an associate professor of pharmacy at the University of Waterloo whose specialities include vaccine design, said the goal is to mimic the route of infection that SARS-CoV-2 normally takes, including targeting the right cells in the lungs and lower respiratory tract.