COVID-19 Linked To Asthma, Seasonal Allergies

FRIDAY, Aug. 22, 2025 (HealthDay News) — COVID-19 infection might increase a person’s risk of developing asthma, seasonal allergies and long-lasting sinus problems, a new study says.

However, vaccination appears to reduce this risk, researchers report in the Journal of Allergy and Clinical Immunology.

“It is interesting to see that vaccination not only protects against the infection itself, but also appears to provide good protection against certain respiratory complications,” senior investigator Philip Curman, a researcher in medical epidemiology and biostatistics at Karolinska Institute in Sweden, said in a news release.