Welcome Eilana.  I have integrated your question into a currently active topic:  Does nvda work with Microsoft teams? 

Activate that link to review what has been discussed already over the last day.  This message, by member Pramit, with a tutorial might be of particular interest.
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Brian - Windows 10 Pro, 64-Bit, Version 1909, Build 18363  

Power is being told you're not loved and not being destroyed by it.

       ~ Madonna