Shipments of Moderna's coronavirus vaccine will be rolling out today, with the first doses expected to arrive Monday.
Moderna's shipment comes after Pfizer's coronavirus vaccine began being distributed around a week ago.
Both vaccines are more than 94% effective and two doses are needed to protect against the coronavirus.
Experts, however, say Moderna's vaccine is easier to handle because it can be stored in a standard refrigerator. Pfizer's vaccine must be stored in an ultra-cold freezer.
Around 6 million doses of Moderna's vaccine will be distributed across the country, with about 346,000 doses set to arrive in New York this week.