Q+A: What Factors are Associated with Disparities in COVID-19 Vaccination Rates? – Drexel News Blog

Throughout the COVID-19 pandemic, experts from Drexel Universitys Dornsife School of Public Health have researched disparities in testing, vaccination, health care access and other markers of the pandemic response. The latest study, this month in the American Journal of Epidemiology, harkens back to December 2020 through September 2021, when the United States first started distributing the COVID-19 vaccines, and looked at full vaccination rates in neighborhoods of 16 large U.S. cities, including Philadelphia, Austin, San Francisco, Chicago and New York City.

Researchers at Drexels Urban Health Collaborative used the CDCs Social Vulnerability Index a measure that includes socioeconomic, housing, minority status, language and other factors to assess a communitys resilience against human suffering and financial loss when faced with a crisis and looked at its association with COVID-19 vaccination in zip codes of the 16 cities. The team found wide disparities in vaccination, with neighborhoods with higher levels of social vulnerability having the lowest vaccination rates.

Shortly after the paper was published, Anthony Fauci, MD, the U.S. Presidents chief medical advisor, made a comment this week that our country is no longer in a pandemic, but a transitional phase, perhaps toward endemicity.

So, with a hopeful tone, the Drexel News Blog checked in with the papers lead author Usama Bilal, PhD, an assistant professor at Dornsife, about his teams recent findings and the current state of the pandemic locally and internationally.

We are in a better situation than one year ago, but we are still in a tough one. 362 daily deaths for a year is 132,000 deaths, which is thesame number of people that died from Alzheimers in 2019, and almost thrice the influenza/pneumonia deaths in 2019. The pandemic has also slowly moved further away towards the margin, affecting more rural and disadvantaged populations over time. Moreover, as a pandemic is a global phenomenon, it is still raging in many places, and will continue doing so at least until we achieve global vaccine equity.

We found that neighborhoods with higher levels of social vulnerability had lower likelihood of full vaccination. This pattern mirrors what we have described before with COVID-19 itself, which tends to be higher infection rates and its effect worse in those same areas. Given what we know about public health, that it affects the most vulnerable, poor and oppressed, this is not surprising. What was surprising is the degree of variability, as we found cities with much wider disparities than others.

We found that some cities in California, along with our own city of Philadelphia had a narrower gap between neighborhoods. We did not study factors driving these narrower inequalities, but we know that California has an extensive COVID-19 equity plan and that some of its cities (e.g., San Francisco) made an effort to vaccinate people in the more vulnerable neighborhoods.

Here in Philadelphia, there have been several efforts that would be great to evaluate and, if found to be effective, scale up in other locations, including the efforts of theBlack Doctors COVID-19 Consortium, thecoordinated effortsof community organizations to vaccinate Latino individuals, and some prioritization efforts towards low vaccinated zip codes in April 2021, when criteria for vaccination was more restrictive. We cannot know for sure with our data whether these efforts were the reason for Philadelphias narrower gap in vaccination, but they are definitely very important initiatives.

Many people that work in vaccines and communication were already talking about this at the beginning of the vaccination rollout, because these are issues we have seen with other interventions. If you think about the politization of mask use, vaccines have followed a similar trend.

However, I want to point out that we should not just focus on hesitancy and mistrust, but also on access. In many cities, getting an appointment to be vaccinated was challenging, vaccination sites were far away from where many people live and public transit options were scarce. There were also some immigrant populations being (incorrectly) asked for identification or insurance, which created very understandable concerns.

Public health is a collective effort, and its measures are collective by nature. Local public health departments, local and state governments, and the federal government itself, are the key agents driving public health measures. There has been a slow shift towards focusing just on personal responsibility, which is antithetical to the mission of public health. Pressuring your local governments to apply timely and adequate measures in times of high transmission, and supporting them when they do, may be a key strategy. If the last two years have taught us something, its that caring for each other is the only way out of this.

Media interested in talking with Bilal should contact Greg Richter, news manager, at gdr33@drexel.edu or 215-895-2614.

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Q+A: What Factors are Associated with Disparities in COVID-19 Vaccination Rates? - Drexel News Blog