While supplies are limited, CVS said it was allocated about 250,000 vaccines for the first phase of the rollout. These have been circulated to locations across the country.

Vaccines will only be available by booking an appointment via CVS.com or through the CVS Pharmacy app. Residents without online access are asked to contact customer service at (800) 746-7287. The CVS rollout officially launched February 12.

Eligibility for COVID vaccines will vary from state to state, so residents are encouraged to check with their local health department to ensure they qualify for the dose.

The Centers for Disease Control and Prevention (CDC) has noted all pharmacy partners will focus on those who are eligible for vaccination based on state criteria. It said these groups are likely to include healthcare workers, essential workers and the elderly.

Here is an overview of the first stage of the CVS vaccine rollout:

California—about 81,900 doses in roughly 100 storesConnecticut—about 6,800 doses in roughly 12 storesHawaii—about 4,400 doses in roughly 7 storesMassachusetts—about 21,600 doses in roughly 18 storesMaryland—about 11,000 doses in roughly 18 storesNew Jersey—about 19,900 doses in roughly 27 storesNew York (excluding NYC)—about 20,600 doses in roughly 32 storesRhode Island—about 3,400 doses in roughly 4 storesSouth Carolina—about 15,300 doses in roughly 17 storesTexas—about 38,000 doses in roughly 70 storesVirginia—about 26,000 doses in roughly 28 stores

In addition, CVS Health said it is also “working directly with additional regions, including Arkansas, Colorado, Georgia, Illinois, Indiana, Iowa, Ohio, Indiana and Puerto Rico, to provide in-store vaccinations to eligible populations using state allocations.

The number of vaccines that could be allocated to additional regions was not specified, but CVS indicated it would be determined as more supply becomes available.

CVS said in the release: “Other states may choose the same option, which is separate from the federal pharmacy partnership program but can run concurrently.”

The retailer previously said it would not release a list of each of the participating store locations because they are likely to change frequently based on supply.

The company has said: “Individuals eligible for COVID-19 vaccinations are asked to use the appropriate digital channels or contact customer service to check for appointment availability, as opposed to contacting individual CVS Pharmacy locations.”

CVS is one of the 21 partners involved in a scheme called the Federal Retail Pharmacy Program for COVID-19 Vaccination, which also involves Walgreens, Walmart, Rite Aid, Publix Super Markets, Costco Wholesale, Health Mart Pharmacies and more.

According to the CDC, the 21 partners represent “more than 40,000 retail and long-term care pharmacy locations nationwide.” Initially, partnered pharmacies will get around one million doses each week to be divided among retail locations.

Officials stressed more retail locations will be added as vaccine supply increases. The CDC said: “It is important to know that early on, when vaccine supply is still limited, many pharmacies may not have vaccines or may have very limited supply.

“Individuals who are eligible for vaccination in their state and are interested in getting vaccinated at their local pharmacy should call or check the pharmacy’s website.”

President Joe Biden said on Thursday that his administration had finalized a deal to buy 200 million additional COVID vaccines from Pfizer/BioNTech and Moderna.

They are now scheduled for delivery by the end of July, Biden said, noting the U.S. was currently on track to have enough supply for around 300 million Americans.

“We’ve now purchased enough vaccine supplies to vaccinate all Americans,” Biden said during an address made at the National Institutes of Health this week, as NPR reported. “Now we’re working to get those vaccines into the arms of millions of people.”

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