- There is still no effective treatment for COVID-19. Some appear promising, but more rigorous testing is needed before we know the effectiveness of each treatment.
- More than 80 vaccines are being produced and tested. While many are promising, it may be months if not more than a year before we know if they are effective, and longer than that before they are widely available.
- Coronaviruses do not evolve as quickly as influenza viruses do, so when an effective vaccine is developed it should be effective against all current genetic variants of the virus. This may change if the new coronavirus stays in the human population beyond this year.
- People exposed to COVID-19 may develop varied levels of immunity to future infection. We do not yet know how long immune protection might last.