States are looking to help their vulnerable communities as vaccine distribution ramps up More mass coronavirus vaccination sites are popping up across the country as the pandemic continues, including sports arenas like Doger Stadium in Los Angeles. CNN's Erica Hill reports. Posted: Feb 7, 2021 1:51 PM Updated: Feb 7, 2021 1:51 PM Posted By: By Madeline Holcombe, CNN As officials make strides to improve accessibility to Covid-19 vaccines in the United States, some states are turning their focus to the underserved and vulnerable communities that have not yet been eligible for protection. States initially raced to vaccinate their priority populations, often health care workers and people in long-term care facilities, followed by seniors and/or essential workers, with many states saying demand for vaccines was exceeding supply.