Skip to Content

Children Given Flu Shot Less Likely to Have Symptomatic COVID-19

WEDNESDAY, Feb. 24, 2021 -- Children who have received an influenza vaccine are less likely to have symptomatic COVID-19 or severe disease, according to a study recently published in Cureus.

Anjali Patwardhan, M.D., and Adrienne Ohler, Ph.D., from the University of Missouri in Columbia, examined the effect of influenza and pneumococcal vaccines on the disease course among severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) patients aged 20 years and younger who visited Arkansas Children's Hospital System between Feb. 1 and Aug. 30, 2020.

The researchers found that viral interference may have played a role in the flu and COVID-19 twindemic. Comparing SARS-CoV-2-positive patients who had been vaccinated versus those who had not been vaccinated for influenza showed that patients who were vaccinated had lower odds of having symptomatic diseases (odds ratio [OR], 0.714). Patients who received the pneumococcal vaccine also had lower odds of having symptomatic disease than those who were unvaccinated (OR, 0.482). Compared with patients who were not vaccinated, patients who were vaccinated for influenza had lower odds of having respiratory symptoms (OR, 0.678). Patients vaccinated for influenza and pneumonia had lower odds of severe disease than those not vaccinated (ORs, 0.672 and 0.412, respectively).

"It is known that the growth of one virus can be inhibited by a previous viral infection," Patwardhan said in a statement. "This phenomenon is called virus interference, and it can occur even when the first virus invader is an inactivated virus, such as the case with the flu vaccine."

Abstract/Full Text

© 2021 HealthDay. All rights reserved.

Read this next

Physician's Briefing Weekly Coronavirus Roundup

Here is what the editors at Physician's Briefing chose as the most important COVID-19 developments for you and your practice for the week of April 12 to 16, 2021. This roundup...

Senators Urge Biden to Waive Rules That Restrict COVID-19 Vaccine Production

FRIDAY, April 16, 2021 -- The United States should support efforts to temporarily waive intellectual property rules so that nations struggling to vaccinate their populations...

Europe Surpasses 1 Million COVID-19 Deaths

FRIDAY, April 16, 2021 -- The COVID-19 death toll in Europe has surpassed 1 million, and it is seeing about 1.6 million new cases each week, a top World Health Organization...

More News Resources

Subscribe to our Newsletter

Whatever your topic of interest, subscribe to our newsletters to get the best of in your inbox.