The IRS is working on keeping up with helping taxpayers, processing returns and issuing refunds to the "greatest extent possible."  

Please refer to the following link for an update.  

https://www.irs.gov/newsroom/taxpayer-assistance-center-statement   

I read that they have put a stop on april 10 on mail returns. From the irs page and I had mailed my responce notice and was delivered on march 9th. Would they still review and process my return? I have called ahead and let them know that my responce have been mailed in that they should expect it Express mailed .

To protect the public and employees, and in compliance with orders of local health authorities around the country, certain IRS services such as live assistance on telephones, processing paper tax returns and responding to correspondence are extremely limited or suspended until further notice.

 https://www.irs.gov/newsroom/irs-operations-during-covid-19-mission-critical-functions-continue