A 'suctioning' technique for COVID-19 vaccines may be able to provide more protection than traditional needles, a new study suggests. Researchers tested a new type of immunization for the virus based on the ancient form of medicine known as cupping, in which heated special cups are placed on the skin for a few minutes to create suction, immediately follow a Covid shot. They found rodents that were given the vaccine via the suction method generated antibody levels millions of times higher than a traditional injection. The team, from Rutgers University in New Brunswick, New Jersey, says a suctioning vaccine is...