Vaccine effort turns into slog as infectious variant spreads

As cases tumble and states reopen, the potential final stage in the U.S. campaign to vanquish COVID-19 is turning into a slog, with a worrisome variant gaining a bigger foothold and lotteries and other prizes failing to persuade some Americans to get vaccinated.

“The last half, the last mile, the last quarter-mile always requires more effort,” Dr. Nirav Shah, director of the Maine Center for Disease Control and Prevention, said Wednesday.

While two of the states slammed hardest by the disaster, California and New York, celebrated their reopenings this week with fireworks and a multimillion-dollar drawing, hospitalizations in parts of Missouri are surging and cases are rising sharply in Texas, illustrating the challenges the country faces this summer.

One major concern is the highly contagious and potentially more severe delta variant of the coronavirus that originated in India. While health officials say the vaccines are effective against it, the fear is that it will lead to outbreaks in states with lower vaccination rates.

The delta variant has increased from 2.7% of all cases in May to 9.7% this month, Dr. Rochelle Walensky, director of the U.S. Centers for Disease Control and Prevention, said during a call for governors on Monday, according to details provided by the Washington governor's office.

At the same time, states are convening focus groups to better understand who is declining to get vaccinated, why, and how to convince them that getting the shot is the right thing to do.

“It’s a race between the vaccines going into people and the current or future variants,” said Kansas Health Secretary Dr. Lee Norman.

Average deaths and cases per day have plummeted 90% or more across the U.S. since the winter. But the picture is uneven.

In Texas, the rolling average of...