London AP News 14.09.2020

Scientists at Oxford University and Imperial College London “are beginning a small study comparing how two experimental coronavirus vaccines might work when they are inhaled by people instead of being injected.” The scientists “said a trial involving 30 people would test vaccines developed by both institutions when participants inhale the droplets in their mouths, which would directly target their respiratory systems.” Both vaccine candidates are “being tested in trials through intramuscular injection, but scientists from Imperial said that vaccines delivered via inhalation could potentially deliver a more specialised response.” Chris Chiu of Imperial’s Department of Infectious Disease said there is evidence influenza vaccines can be more effective when inhaled, “We are keen to explore if this may also be the case for SARS-CoV-2 and whether delivering COVID-19 vaccines to the respiratory tract is safe and produces an effective immune response.”