42 Providing temporary use of on-line non-downloadable software for verifying Covid-19 vaccinations and tests, antibody verification, scheduling, registering and managing vaccination eligibility and appointments, onsite visit management for vaccinations, tracking and managing vaccine inventories and vaccination equipment, tracking status of vaccine deliveries, displaying participating vaccine administrators and available appointment times, displaying vaccination records, managing health information, managing vaccine certificate issuance, and for managing vaccine information and the vaccination process; Platform as a service (PAAS) featuring computer software platforms for verifying Covid-19 vaccinations and tests, antibody verification, scheduling, registering and managing vaccination eligibility and appointments, onsite visit management for vaccinations, tracking and managing vaccine inventories and vaccination equipment, tracking status of vaccine deliveries, displaying participating vaccine administrators and available appointment times, displaying vaccination records, managing health information, managing vaccine certificate issuance, and for managing vaccine information and the vaccination process