Covid-19 vaccines that are sprayed into the nose or inhaled won't require needles — and they may be more effective, too https://t.co/g4lV7XTjuQ— Bloomberg (@business) October 11, 2020
Covid-19 vaccines that are sprayed into the nose or inhaled won't require needles — and they may be more effective, too https://t.co/g4lV7XTjuQ