By: KDKA-TV News Staff

PITTSBURGH (KDKA) – Three major drugstore chains are now offering same-day COVID-19 vaccine appointments.

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Walgreens says same-day appointments will be available beginning on Wednesday.

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Meanwhile, CVS began same-day vaccine appointments a little over one week ago and Rite Aid says it will take walk-ins on a limited basis.

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These chains are rolling out more flexible schedules as demand for vaccines slows and some express vaccine hesitancy.