| Variable | Cases n = 51 (%) | Controls n = 102 (%) | p-Value |
| Signs and Symptoms of COVID-19 | |||
| The symptoms of COVID-19 include fever, fatigue, cough, and myalgia. | 51 (100.0) | 102 (100.0) | 1.00 |
| Nasal congestion, runny nose, and sneezing can occur among people infected with the COVID-19 virus. | 51 (100.0) | 101 (99.0) | 0.48 |
| At present, there is no effective treatment for COVID-19, but early symptomatic treatment can help most patients recover from infection | 47 (92.2) | 101 (99.0) | 0.02 |
| Not all persons with COVID-19 will develop into severe cases. | 45 (88.2) | 99 (97.1) | 0.03 |
| Transmission routes | |||
| Eating or contacting wild animals may result in infection by the COVID-19 virus | 27 (52.9) | 77 (75.5) | 0.00 |
| Persons with COVID-19 cannot pass the virus to others when a fever is not present | 26 (51.0) | 59 (57.84) | 0.42 |
| The COVID-19 virus spreads via respiratory droplets from infected individuals | 51 (100.0) | 100 (98.0) | 0.31 |
| Prevention and control | |||
| Ordinary residents can wear general medical masks to prevent infection from the COVID-19 virus | 47 (92.2) | 95 (93.1) | 0.82 |
| Children and young adults don’t need to take measures to prevent infection from the COVID-19 virus | 29 (56.9) | 85 (83.3) | 0.00 |
| To prevent infection by COVID-19, individuals should avoid going to crowded places such as bus stations and busy supermarkets | 51 (100.0) | 102 (100.0) | 1.00 |
| Isolation and treatment of people who are infected with the COVID-19 virus are effective ways to reduce the spread of the virus | 51 (100.0) | 102 (100.0) | 1.00 |
| People who have contact with someone infected with the COVID-19 virus should be immediately isolated in a proper place. | 50 (98.0) | 101 (99.0) | 0.61 |
| Summary of knowledge | |||
| Good | 46 (90.2) | 101 (99.0) | 0.01 |
| Poor | 5 (9.8) | 1 (1.0) | |