Black Americans are 80% more likely to be hospitalized for the flu, compared with White Americans, according to new federal data.
Black, Hispanic, and American Indian/Alaska Native (AI/AN) adults in the United States also have had lower influenza vaccination rates, compared with their White counterparts, since 2010, researchers at the Centers for Disease Control and Prevention (CDC) revealed in a report.
The inequalities are the result of barriers to care, distrust of the medical system, and misinformation, the report said.
“We have many of the tools we need to address inequities and flu vaccination coverage and outcomes,” said CDC Acting Principal Deputy Director Debra Houry, MD, MPH, in a press call; “however, we must acknowledge that inequities in access to care continue to exist. To improve vaccine uptake, we must address the root causes of these ongoing disparities.”
The CDC has already reported early increases in flu activity in the United States, with the highest activity in the southeastern and south-central parts of the country. Experts also warn of a potentially more severe influenza season than in the previous 2 years. CDC officials emphasized that vaccination is the best protection against severe illness, hospitalization, and death from the flu. “Everyone should get vaccinated against flu today and encourage others and their community to get a flu vaccine for the best protection against flu this fall and winter,” Dr. Houry said.
In the recent report on disparities by community published October 18 in CDC Vital Signs, researchers looked at hospitalization rates from 2009 to 2022 and vaccination rates from 2010 to 2022 based on race and ethnicity using two national databases, the Influenza-Associated Hospitalization Surveillance Network and the Behavioral Risk Factor Surveillance System. All individuals included in the analysis were aged 18 years or older, and the 2020-2021 flu season was excluded from the analysis because of insufficient data.
Compared with those for White adults, hospitalization rates were 80% higher for Black adults, 30% higher for Hispanic adults, and 20% higher for AI/AN adults. While flu vaccination rates were similar in White and Asian adults (about 54%), coverage was lower in Black (42%), Hispanic (38%), AI/AN (41%), and other/multiracial (43%) adults. This disparity persisted even among individuals who had medical insurance, a personal health care provider, and a routine checkup within the last year.
Carla Black, PhD, MPH, an epidemiologist at the CDC’s Immunization Services Division, said during the press call. While flu vaccines may not always prevent infection, people who do get sick after being vaccinated tend to have better outcomes, she added. The report noted that building trust, increasing access to vaccination services, and combating misinformation are important steps to increasing vaccine coverage in minority groups.
While social distancing measures such as masking have made it difficult for the flu to spread, the relaxation of these safety measures could also lead to higher case counts. “We’ve had two mild flu seasons, and this means we might be ripe for a severe season,” Dr. Black said. “People haven’t had natural disease in 2 years, so there’s less natural immunity out there. People are going back to work. People are traveling again. All of these factors could contribute to us having a more severe flu season.”
A version of this article first appeared on Medscape.com.