Objective: This research aims to analyze the relation between biological, social and cultural factors regarding the attitudes and preventive measures against COVID-19 among citizens of Trujillo- Peru. Material and Methods: This is a descriptive research, with a quantitative approach and a correlational, prospective and design. A previously validated questionnaire was used to collect certain biological, social and cultural data, as well as attitudes and preventive measures against COVID-19 among 185 citizens of Trujillo. Due to the quarantine and the Sanitary National Emergency, the collection of data was done by virtual means. Results: Citizens between 18 and 29 years old have inappropriate attitudes (12.4%) and inappropriate preventive measures (8.6%). Also, males have inappropriate attitudes and inappropriate preventive measures. Moreover, single citizens or unmarried couples without children have inappropriate attitudes (14.1%) and inappropriate practices (13%). Conclusions: Among biological factors, age and gender are related to attitudes and preventive measures regarding the pandemic. Among social factors, marital status and parenthood are related to attitudes and preventive measures regarding the pandemic. And among the cultural factor, knowledge of this disease and the measures to be taken are related to the preventive measures against COVID-19.