<https://hospitalhealthcare.com/covid-19/flu-vaccination-reduces-infection-risk-and-symptom-burden-of-covid-19/>
<http://schema.org/dateModified>
"2021-03-29T10:50:06+00:00"^^<http://schema.org/Date>
<https://hospitalhealthcare.com/covid-19/flu-vaccination-reduces-infection-risk-and-symptom-burden-of-covid-19/>