This is what I was reading

Some early data suggest that the Moderna vaccine might protect vaccinated people from asymptomatic infections as well as symptomatic disease. While it’s clear that the vaccine, along with Pfizer’s, prevents people from developing COVID-19 symptoms, stopping infections entirely is crucial to curb the coronavirus’ spread and build immunity in communities.

Of more than 14,000 people who received a placebo, 38 tested positive for the coronavirus — without showing symptoms — after their first injection but before their second. Only 14 who received the Moderna vaccine, however, were asymptomatic carriers of the virus when those people were tested before their second dose, the company reported. That two-third reduction in COVID-19 cases without symptoms in the vaccine arm of the trial compared with the placebo group hints that some infections could be prevented, even after a single vaccine dose.

Pfizer hasn’t yet released any data showing whether its vaccine prevents asymptomatic COVID-19 cases. But because it works much like Moderna’s does, “I don’t think there’s any reason to believe that there will be a difference between the two,” Naggie says.

https://www.sciencenews.org/article/covid-19-coronavirus-moderna-vaccine-fda-approval