WATERTOWN â The first shipments of Modernaâs COVID-19 vaccine arrived in Jefferson and St. Lawrence counties this week as hospitals continue d… WATERTOWN â With the first COVID-19 vaccine administered in New York state last week, doses are now arriving at Samaritan Medical Center, with the first dose given at 6 a.m. Tuesday to Dr. Khalid P. Sindhu, nephrology specialist at the hospital. He became the first to receive the Pfizer COVID-19 vaccine in Jefferson County. Dr. Sindhu has been with Samaritan since 1997. Knowing the hospital has seen multiple patients with COVID-19 since the pandemicâs onset, and wanting to help stop the spread of the disease, Dr. Sindhu said he and his fellow medical professionals have been waiting for the vaccineâs arrival.