Hey Grok, how many studies have been published on the efficacy and safety of the COVID-19 vaccines in pregnancy?
"Considering the continuous updates in research and the lack of a single definitive count across all sources, a reasonable estimate based on the most detailed syntheses suggests at least 40 to 50 distinct studies (including observational studies and trials) have been published by early 2025, with some reviews aggregating data from overlapping studies. This number reflects studies specifically focused on efficacy and safety in pregnancy, though the total could be higher if broader vaccine safety studies with pregnancy subgroups are included."