Will the CDC send a message if it doesn't receive a call?

If CDC doesn't get a call, it will send a message.

If you receive a call from the CDC, it may be that you have had close contact with a confirmed case or asymptomatic infected person recently, or have had close contact with the case. For the health and safety of you and your family, so that people who may be infected can be investigated and treated as soon as possible, please provide information patiently and truthfully.

The transfer personnel will not ask questions related to the spread of diseases such as property, ask for your SMS verification code, send links for you to click, promote products or ask for payment for any reason, nor will they ask you to transfer money or conduct so-called "fund verification".