Because the news about this vaccine is still early, there is still a lot we don't know. Remaining questions include when the vaccine might be available for everyone, if it will work in children younger than 12 (as they have been excluded from the early trials), if it will stop the virus from spreading in people who are infected but don't have any symptoms (asymptomatic), if it will prevent people from developing severe cases, and how long the vaccine might offer protection from the the virus.

Previous research published before the pandemic found that people may involuntarily touch their eyes several times per hour. A study from China was published in mid-September 2020 where researchers suggested that wearing glasses may prevent people from touching their eyes, and recommended paying more attention to potential COVID-19 exposure through the eyes.

During the COVID-19 pandemic, public health and medical experts have recommended that everyone try to avoid touching their face and eyes, whether they wear glasses or not, to reduce the possibility of contaminated hands infecting the body. This recommendation complements other recommendations to keep hands clean with regular hand washing or sanitizing, and to maintain distance from other people when possible.