Bucks and Montgomery County hospitals have started vaccinating people against the fast-spreading COVID-19 virus, but, for now, it's an invitation-only event. Local hospitals have started scheduling appointments and distributing the vaccine, but some are only offering appointments to patients in their own health systems who meet the eligibility criteria, officials said. Later this month Lower Bucks Hospital anticipates it will begin distributing the COVID-19 vaccine to the first individuals who signed up through Bucks County agencies. The dates for the vaccine clinic at the Bristol Township hospital were pending as of Tuesday, spokeswoman Michelle Aliprantis said. The hospital is scheduling patients through the Bucks County Health Improvement Project and the county Department of Health, Aliprantis said.