Studies being conducted on the primary COVID-19 vaccinations continue to show promising results, particularly when it comes to mitigating severe symptoms and lowering risk of death upon infection.

As reported by CNN, recent studies from the Centers for Disease Control and Prevention (CDC), however, indicate that vaccinated people produced similar levels of viral infection to those who were unvaccinated — meaning that vaccinated people could still act as carriers of the virus and spread it even they themselves don’t show any symptoms.

The rise of the Delta variant has prompted cities and facilities across the country to reconsider or reinstate indoor mask mandates altogether. Facility managers and BSCs looking for guidance on potential mandates and infection control measures should continue to keep tabs on CDC recommendations and actively growing studies on COVID-19 transmission.