Vitamin D Levels Linked to Asthma Severity in Children with SARS-CoV-2 Infection

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Children with asthma who contracted SARS-CoV-2, the virus that causes COVID-19, had significantly lower vitamin D levels and more severe asthma symptoms compared to those without the infection, according to a recent study. Researchers from the University of Medicine and Pharmacy Craiova in Romania analyzed data from 145 children with asthma, finding that those with SARS-CoV-2 infections had reduced serum vitamin D levels and were more likely to experience airflow limitation, poor asthma control, and increased airway inflammation.

Key Takeaways:

  • The study included 145 children with asthma, with 93 having SARS-CoV-2 infections and 52 without.
  • Children with SARS-CoV-2 infections had significantly lower median serum vitamin D levels compared to those without the infection (p = 0.004).
  • Children with SARS-CoV-2 infections were more likely to experience airflow limitation, poor asthma control, and increased airway inflammation.
  • The study suggests a potential role of vitamin D in influencing asthma severity and infection response.
  • The research was supported by the University of Medicine and Pharmacy Craiova, Romania.
  • The study's findings have implications for the treatment and management of asthma in children with SARS-CoV-2 infections.

Statistics:

  • 145 children with asthma were included in the study.
  • 93 children with SARS-CoV-2 infections were analyzed.
  • 52 children without SARS-CoV-2 infections were analyzed.
  • Median serum vitamin D levels were significantly lower in children with SARS-CoV-2 infections (p = 0.004).
  • Children with SARS-CoV-2 infections had a higher rate of airflow limitation (85% vs. 61%, p = 0.01).
  • Children with SARS-CoV-2 infections had poorer asthma control (63% vs. 46%, p = 0.02).
  • Children with SARS-CoV-2 infections had increased airway inflammation (71% vs. 54%, p = 0.05).

Sources:

  • "Effect of COVID-19 Disease on Serum Vitamin D Status in Children with Asthma-A Retrospective Study." Journal of Clinical Medicine 2025;14(13):4525.
  • Pediatrics Week. August 2, 2025; p 12.