Background During the first month of 2020 and the outbreak of a new coronavirus disease (COVID-19), Almazar District Sanitry, Epidemiological Welfare, and Public Health Service (Service) staff took the necessary measures to prevent the disease. The purpose of the research is to evaluate the effectiveness of the work performed by the Sanitary Epidemiological Welfare and Public Health Service and public health staff during this pandemic by analyzing the epidemiological chart and survey. Methods A retrospective study of 1900 “epidemiological cards” from the epidemiology department of the Sanitary Epidemiological Welfare and Public Health Service activity in Almazar district and a questionnaire to its staff and employees was selected based on the analysis of the epidemiological investigation was conducted. The questionnaire was selected using Google Docs, and in Google Docs the questionnaire was created and sent through social media channels. A Likert scale was used to mark (1=yes, 2=partially, 3=no, 4=difficult to answer). The data from the sanitary epidemiological Welfare and Health service were analyzed using the SPSS program.