|
 Rivals CVS Health Corp and Kroger Co earlier this month had
announced plans to make booster shots available at their stores,
pending regulatory guidance.
U.S. health regulators have authorized a third dose of the vaccines
made by Pfizer and partner BioNTech as well as Moderna for those
with weak immune systems, and the government has said it plans to
make booster doses available to more Americans in September.
The need for boosters, however, has not yet been recommended by
health regulators.
The U.S. Centers for Disease Control and Prevention (CDC) on Monday
said it may be difficult to determine at this point whether immunity
from prior vaccination is waning over time or if the vaccines are
just less able to prevent infection by the highly-transmissible
Delta variant.
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Walmart, which runs one of the largest U.S. pharmacy chains, and its
Sam's Club pharmacies are currently administering the third dose to
immunocompromised individuals.
(Reporting by Manojna Maddipatla in Bengaluru; Editing by Amy Caren
Daniel)
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