the good health hospital has been able to secure two shipments of a vaccine against a novel variant of a certain infectious disease. both shipments deliver the same vaccine. the first shipment is expected at the end of january and includes 500 doses. the second shipment is expected at the end of february and includes 800 doses. your task is to determine the number of employees of each type vaccinated in january (shipment 1) and in february (shipment 2). the objective is to prioritize earlier vaccination of employees with higher exposure level to the disease.