The Food and Drug Administration could unveil a nationwide strategy on COVID-19 booster vaccines as early as next month amid the ongoing surge in new infections linked to the highly transmissible delta variant of the virus, according to reports.

The Wall Street Journal, citing people familiar with the agency’s discussions, first reported that the administration of President Joe Biden is working quickly to develop policies around booster shots amid concern about the ongoing length of the pandemic and if those who are vaccinated will remain protected, particularly Americans that are more susceptible to severe infection.