Canadian scientists are set to begin testing a new COVID-19 vaccine that would be inhaled instead of being injected. For jab-leery hopeful travellers, that could make a big difference in travel planning. Scientists from McMaster University have designed a new Canadian-made formula that is designed to offer a more robust, and more stable immune response. The vaccine is being tested as a booster for people who have received two doses of an mRNA vaccine, such as Pfizer-BioNTech or Moderna. The formula is administered through a jet nebulizer that generates a fine, misty solution, “with particles that are so tiny they’re breathed right down deep into the lung,” said Fiona Smaill, who is leading the trials.
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