Contact tracing was crucial during the COVID-19 pandemic in various countries, especially in Germany, to limit the virus's spread and manage healthcare resources.
A study in the Rhine-Neckar and Heidelberg areas of Germany explored the effectiveness of contact tracing across different age groups from January 2020 to April 2022, analyzing data on infections and quarantines.
Results showed that out of a population of 706,974, a significant portion tested positive for COVID-19, with lower relative risk of infection for elderly individuals compared to adults, and the majority of deaths occurred in senior citizens.