The Event Feed is made up of alert cards with individual updates and multi-signal updates. Individual Updates contain a single update related to the topics you selected.
Here's how to read an alert card:
The title of the card (in color) communicates which event type you selected to be notified about when you created your Watchlist.
The theme highlights the group of topics including organizations, conditions and drugs that are surfaced in a particular event.
The signal is a label that communicates the type of individual change that has occurred to the theme(s) that you are monitoring.
Indicates the main change affecting a particular clinical trial.
The source indicates where the data originated