From the outset of the COVID-19 pandemic, social media has provided a platform for sharing and discussing experiences in real time. This rich source of information may also prove useful to researchers for uncovering evolving insights into post-acute sequelae of SARS-CoV-2 (PACS), commonly referred to as Long COVID. In order to leverage social media data, we propose using entity-extraction methods for providing clinical insights prior to defining subsequent downstream tasks. In this work, we address the gap between state-of-the-art entity recognition models and the extraction of clinically relevant entities which may be useful to provide explanations for gaining relevant insights from Twitter data. We then propose an approach to bridge the gap by utilizing existing configurable tools, and datasets to enhance the capabilities of these models. Code for this work is available at: https://github.com/VectorInstitute/ProjectLongCovid-NER.
