Medical front line, then who?
There is consensus that healthcare workers be in the first stage ― Phase 1 ― of distribution. That recommendation was made in a report from the National Academies of Sciences, Engineering, and Medicine (NASEM). Phase 1A would include first responders; Phase 1B might include people of all ages who have two or more comorbidities that put them at significantly higher risk for COVID-19 or death, as well as older adults living in congregate or overcrowded settings, the NASEM report said.
A presentation from the CDC’s Matthew Biggerstaff, ScD, MPH, underscored challenges in distributing what are expected to be limited initial supplies of COVID vaccines.
Biggerstaff showed several scenarios the CDC’s Data, Analytics, and Modeling Task Force had studied. The initial allocation of vaccines would be for healthcare workers, followed by what the CDC called Phase 1B.
Choices for a rollout may include next giving COVID vaccines to people at high risk, such as persons who have one or more chronic medical conditions, including heart disease, diabetes, kidney disease, or obesity. Other options for the rollout could be to vaccinate people aged 65 years and older or essential workers whose employment puts them in contact with the public, thus raising the risk of contracting the virus.
The CDC’s research found that the greatest impact in preventing death was to initially vaccinate adults aged 65 and older in Phase 1B. The agency staff described this approach as likely to result in an about “1 to 11% increase in averted deaths across the scenarios.”
Initially vaccinating essential workers or high-risk adults in Phase 1B would avert the most infections. The agency staff described this approach as yielding about “1 to 5% increase in averted infections across the scenarios,” Biggerstaff said during his presentation.
The following are other findings of the CDC staff:
The earlier the vaccine rollout relative to increasing transmission, the greater the averted percentage and differences between the strategies.
Differences were not substantial in some scenarios.
The need to continue efforts to slow the spread of COVID-19 should be emphasized.
Adverse effects
ACIP members also heard about strategies for tracking potential side effects of future vaccines. A presentation by Tom Shimabukuro, MD, MPH, MBA, from the CDC’s COVID-19 Vaccine Task Force/Vaccine Safety Team, included details about a new smartphone-based active surveillance program for COVID-19 vaccine safety.
Known as v-safe, this system would use Web-based survey monitoring and incorporate text messaging. It would conduct electronic health checks on vaccine recipients, which would occur daily during the first week post vaccination and weekly thereafter for 6 weeks from the time of vaccination.
Clinicians “can play an important role in helping CDC enroll patients in v-safe at the time of vaccination,” Shimabukuro noted in his presentation. This would add another task, though, for clinicians, the CDC staff noted.
Pregnancy and breastfeeding are special concerns
Of special concern with the rollout of a COVID vaccine are recommendations regarding pregnancy and breastfeeding. Women constitute about 75% of the healthcare workforce, CDC staff noted.
At the time the initial ACIP COVID vaccination recommendations are made, there could be approximately 330,000 healthcare personnel who are pregnant or who have recently given birth. Available data indicate potentially increased risks for severe maternal illness and preterm birth associated with SARS-CoV-2 infection, said CDC’s Megan Wallace, DrPH, MPH, in a presentation for the Friday meeting.
In an Oct. 27 letter to ACIP, Chair Jose Romero, the American College of Obstetricians and Gynecologists (ACOG), urged the panel to ensure that pregnant women and new mothers in the healthcare workforce have priority access to a COVID vaccine. Pregnant and lactating women were “noticeably and alarmingly absent from the NASEM vaccine allocation plan for COVID-19,” wrote Christopher M. Zahn, MD, vice president for practice activities at ACOG, in the letter to Romero.
“ACOG urges ACIP to incorporate pregnant and lactating women clearly and explicitly into its COVID-19 vaccine allocation and prioritization framework,” Zahn wrote. “Should an Emergency Use Authorization be executed for one or more COVID-19 vaccines and provide a permissive recommendation for pregnant and lactating women, pregnant health care workers, pregnant first responders, and pregnant individuals with underlying conditions should be prioritized for vaccination alongside their non-pregnant peers.”
This article first appeared on Medscape.com.