Kansas is one of six states — Louisiana, North Dakota, Ohio, Oklahoma and Texas are the others — that are expanding eligibility for the vaccine to all adults on Monday. Minnesota will follow on Tuesday, and Indiana on Wednesday…

For many, the vaccine cannot come soon enough.

Nicole Drum, 42, a writer in the Kansas City, Kan., metro area, cried on Friday when she found out that she would be eligible to get the vaccine as early as Monday. She started calling pharmacies and looking online for available appointments “within minutes of the news breaking,” she said.

Ms. Drum called about 10 places without success. She had more luck on a county website, and booked an appointment for Wednesday.