Abstract
Introduction: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread in hundreds of countries and made millions of people infected and more than two hundred thousands of death.
Methods: This study retrospectively analyzed the data for the SARS-CoV-2 epidemic which ranged from Jan 24 to Feb 16, 2020. The source of the data was the reports about SARS-CoV-2 issued by the authority of Jining City. The materials, the traveling history, the transmission, the gender, and the age of the infected persons were deeply analyzed.
Results: There were 52 cases with SARS-CoV-2 infection in Jining City, including 20 females (38.5%). The average age for the infected persons was 45.3 years, and the cases numbers of the age stage of 31-40 and 41-50 years were all 14 cases with a total proportion of 53.8%. 23 cases were the primary infectors and 14 persons had obvious traveling experience in other provinces. There was one event of four generations of transmission; most of the primary infectious persons did not transmit the virus to others.
Conclusion: Jining City has the relative specific epidemic characteristic of SARS-CoV-2. This character of restricted transmission indicates that the prevention strategy is effective and worthy to learn.

Key words: SARS-CoV-2, transmission panorama, epidemic, Jining City