Updated on February 3, 2021 at 8:35 am NBC Universal, Inc. One hundred eligible people are expected to get the coronavirus vaccine in Braintree Wednesday as the city opens its first public vaccination site, complete with its own website and phone bank. Massachusetts started vaccinating residents 75 years and older Monday as it entered the second phase of its COVID-19 vaccination plan. That age group joins first responders, healthcare workers and residents of long-term care facilities, who were eligible in Phase 1. Appointments opened up for those over 75 last week, but the efforts were hampered by numerous accounts of older residents who could not navigate the state's website or waited hours only to find that all slots were already full.