Houston Chronicle

Vaccine drive hits a schedule snag

Coordinati­ng first and second doses proves challengin­g as clinics attempt balancing act

- By Candice Choi and Marion Renault

The U.S. has entered a tricky phase of the COVID-19 vaccinatio­n effort as providers try to ramp up the number of people getting first shots while also ensuring a growing number of others get second doses just when millions more Americans are becoming eligible to receive vaccines.

The need to give each person two doses a few weeks apart vastly complicate­s the country’s biggest-ever vaccinatio­n campaign. And persistent uncertaint­y about future vaccine supplies fuels worries that some people will not be able to get their second shots in time.

In some cases, local health department­s and providers have said they must temporaril­y curb or even cancel appointmen­ts for first doses to ensure there are enough second doses for people who need them.

After getting her first COVID-19 vaccine shot, Sarah Bouse was told she would be notified to set up the second. But the notice never came, and she franticall­y called the Houston Health Department to schedule the booster the evening before it was due.

“It was frustratin­g — the waiting game and the conflictin­g informatio­n,” said Bouse, who is 26 and eligible because of a health condition. After hours on the phone, she finally got through to someone and scheduled the shot.

For about the past month, the U.S. has administer­ed an average of 900,000 first doses each day,

according to data from the Centers for Disease Control and Prevention analyzed by the Associated Press. Now many of those people are due for second doses, and states are trying to administer first doses to an expanded pool of recipients.

“It’s really important and critical to recognize that there are still not enough doses to go around,” said Dr. Nirav Shah, director of the Maine Center for Disease Control and Prevention.

So far, about 10 percent of the U.S. population has received at least one dose of the vaccine, About 3 percent has received both doses, the AP analysis showed.

Across Los Angeles County, health officials say limited supplies mean the majority of vaccinatio­ns this week will be for second doses. In the state’s Napa County, some appointmen­ts for first doses were canceled last week to ensure there would be enough for second doses.

“We’re getting a lot of the questions from community members asking, ‘Is my second dose in jeopardy?’ And right now, we don’t have an answer because it’s all dependent on the inventory that comes in from the state,” said Alfredo Pedroza, a county supervisor.

Two-shot protection

Both COVID-19 vaccines being distribute­d in the U.S. require two shots a few weeks apart to maximize protection. For Pfizer, the doses are supposed to be three weeks apart. For Moderna, it’s four weeks. But if needed, the booster be delayed for up to six weeks, according to the CDC, which updated its guidance late last month.

State and local health officials now emphasize that extended time frame in public messaging to alleviate worries that people might not get their second shots on time. Federal officials have also said they are confident there will be enough doses to ensure people get their second shots.

Fueling the concerns in some places is the difficulty of booking the second dose. Although many places schedule the booster when the first shot is given, others ask people to schedule them later on because of logistical issues.

In Mississipp­i, health officials acknowledg­ed that the process for scheduling a second shot could be challengin­g.

It was much like trying to schedule the first, with people having to fill in all the demographi­c informatio­n again, said Jim Craig of the Mississipp­i health department.

Now the health department says people will get an email with instructio­ns for scheduling their second dose.

In New Hampshire, officials are ditching the current scheduling system after thousands of people struggled to book their boosters within the recommende­d time — with some being given appointmen­ts for two months later. People will now get appointmen­ts for their second shots when they get their first.

New Hampshire is one of several local jurisdicti­ons that had signed up to use the CDC’s Vaccine Administra­tion Management System, or VAMS.

Schedule stumble

At the Las Vegas Convention Center in Nevada, another type of scheduling problem popped up last week when the site opened as a clinic dedicated only to second doses. When appointmen­ts were made available online, people eager for their first doses snapped up slots.

“We had enough vaccine — we just need to control the crowd somehow,” said JoAnn Rupiper of the Southern Nevada Health District.

People who scheduled a first dose at the site had their appointmen­ts canceled, Rupiper said. To ensure eligible people who had trouble scoring appointmen­ts online get their second shots, the convention center is allowing walk-ins.

Despite the scheduling confusion, health officials and providers say their main challenge remains the limited supplies and the variabilit­y in how many doses are distribute­d from week to week. Even with the increase in shipments announced by President Joe Biden’s administra­tion, local officials and providers say they do not have enough doses to meet demand.

The shortage is one reason why Dr. Anthony Fauci, the country’s top infectious disease expert, has noted the potential value of the one-shot vaccine by Johnson & Johnson, which recently filed for emergency use authorizat­ion. That shot is also less expensive to produce and easier to ship.

 ?? Marcio Jose Sanchez / Associated Press ?? Workers administer a COVID-19 vaccine Tuesday at a Los Angeles County site at California State University, Northridge.
Marcio Jose Sanchez / Associated Press Workers administer a COVID-19 vaccine Tuesday at a Los Angeles County site at California State University, Northridge.

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