Health care is a system of measures aimed at ensuring the preservation and development of physiological and psychological functions, optimal performance and social activity of man at the maximum biologically possible individual life expectancy. The key goal of any health care system is the availability and quality of medical care, medical services, medical care. The main goal of any country is to build an effective model of the health care system and achieve the highest level of public health with minimal resources. The purpose of developing a service to monitor the vaccination status of the population against coronavirus infection is to help users learn information about vaccination and general statistics in the country on vaccinations. This system is suitable for both qualified medical users and users who are unfamiliar with medicine but want to know more about vaccination data. The article attempts to analyze the types of services for vaccinations and their alternatives. It describes the principle of operation of the vaccination service in the form of a report made on the application platform for visualization of Microsoft Power BI Desktop.

The work presents a software system for demonstrating the operation of the SCTP transport protocol in comparison with its better-known analogues – TCP and UDP. To reproduce the operation of the chosen protocol, a socket API was created that describes the operation of SCTP, based on RFC 6458. It also describes the transport protocols that are similar to the protocol that was chosen to improve performance, namely TCP and UDP, their strengths and weaknesses, and what has been improved in SCTP. A test software model is described, which is divided into a client part and a server part, which was created to demonstrate the operation of the SCTP transport protocol. The client part consists in sending a message to the server, which will read this message and reset it. The ability to send using the SCTP protocol directly, or UDP encapsulation, thus encapsulating the SCTP packet into a UDP datagram, has been developed. The efficiency and expediency of using the software model are shown and alternative software models designed to implement the SCTP protocol are considered. The means used to implement this decision are justified as well as the platforms and operating systems on which this solution can be reproduced, other than Windows.