https://techcrunch.com/2020/04/29/twitter-launches-a-covid-19-dataset-of-tweets-for-approved-developers-and-researchers/

Twitter is making its possible for developers and researchers to study the public conversation around COVID-19 in real-time with an update to its API platform. The company is introducing a new COVID-19 stream endpoint to those participating in Twitter Developer Labs — a program that offers access to new API endpoints and other features ahead of their public release. The new COVID-19 endpoint will allow approved developers to access COVID-19 and coronavirus-related tweets across languages, resulting in a dataset that will include tens of millions of tweets daily, Twitter says.

The data can be used to research a range of topics related to the coronavirus pandemic, including things like the spread of the disease, the spread of misinformation, crisis management within communities, and more.