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Early RSV infection raises asthma risk in infants, especially with allergy history; prevention may reduce cases.
A new study in Science Immunology links early RSV infection in infants to a higher risk of childhood asthma, especially in those with a family history of allergies.
Researchers found that RSV and inherited genetic risk together trigger harmful immune changes, increasing sensitivity to allergens.
Protecting babies through maternal vaccination or newborn antibody treatments prevented these immune shifts, suggesting RSV prevention could reduce asthma rates.
Experts urge wider use of available measures to improve long-term respiratory health.
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La infección temprana por RSV aumenta el riesgo de asma en los bebés, especialmente con antecedentes de alergias; la prevención puede reducir los casos.