Are we close to controlling the virus? Plus, a single-dose vaccine might actually work. 21:51

The CDC director says at least 90 percent of the country is still susceptible to the virus. Can we achieve herd immunity safely? Will Johnson & Johnson's single-dose vaccine work?  Farm workers in California struggle to pay bills as they work in the middle of the pandemic.  One doctor says the U.S. military can help create more COVID tests.  See omnystudio.com/policies/listener for privacy information.

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