COVID-19 vaccination clinic has begun distributing the Pfizer-BioNTech shot to staff from two local seniors homes that are experiencing massive outbreaks.Hamilton public health is confirming that employees from Grace Villa and Shalom Village began receiving the vaccine on Monday.Grace Villa is the home of the city’s largest COVID-19 outbreak, with 224 people infected, including 81 staff, and 37 deaths related to the virus since it was declared Nov.