In the current search API, the only form of engagement for which scholars currently get accurate metadata is RTs. There is no metadata field for Replies and the field for Likes does not return the number of times a tweet has been liked by other users. This information would be very valuable for academics, especially considering that the use of the "Like" button by users has increased substantially.

Currently, the Twitter API allows one to capture data on the number of likes, retweets, and replies for each tweet. However, this does not represent total engagement as it is missing data such as link clicks, profile clicks, detail expands, etc.

In order for researchers to understand what tweets gain most engagement, it is crucial to get the 'Total Engagement' data and impressions data for each tweet. This will help researchers understand specifically what type of content gets the highest engagement and accordingly tailor health messages.