Table 2.
Comparison of influenza vaccine knowledge in 2019 and 2021
| Knowledge | Knowledge awareness level | ||
| 2019 awareness rate n (n/N×100%) |
2021 awareness rate n (n/N×100%) |
P value | |
| Wearing a mask helps to prevent the spread of the influenza | 699 (87.0) | 472 (97.5) | <0.001 |
| Influenza is mainly spread by respiratory (coughing, sneezing) droplets | 785 (97.8) | 475 (98.1) | 0.640 |
| Incubation period of influenza | 193 (24.0) | 156 (32.2) | 0.001 |
| Influenza carriers (without symptoms) can spread the infection | 706 (87.9) | 391 (80.8) | 0.001 |
| Patients are contagious | 525 (65.4) | 439 (90.7) | <0.001 |
| The influenza shot that contains live viruses cannot cause people to get influenza | 690 (85.9) | 272 (56.2) | <0.001 |
| Influenza vaccination for immunity is less costly and more cost-effective than developing immunity from influenza infection | 373 (46.5) | 420 (86.8) | <0.001 |
| The best time to get vaccinated | 412 (51.3) | 310 (64.0) | <0.001 |
| Frequency of vaccination | 297 (37.0) | 213 (44.0) | 0.013 |
| Perception of the aim of influenza vaccination | 733 (91.3) | 422 (87.2) | 0.020 |
| Side effects of influenza vaccination | |||
| Fever | 540 (67.2) | 364 (75.2) | 0.002 |
| Pain and swelling at the injection site | 672 (83.7) | 419 (86.6) | 0.160 |
| Headaches | 448 (55.8) | 318 (65.7) | <0.001 |
| Influenza vaccination priority groups | |||
| People over 60 years old | 577 (71.9) | 351 (72.5) | 0.797 |
| Patients with chronic illnesses and infirmity | 705 (87.8) | 400 (82.6) | 0.011 |
| Health facility staff, especially front-line staff | 715 (89.0) | 415 (85.7) | 0.082 |
| Pupils and kindergarten children | 714 (88.9) | 420 (86.8) | 0.253 |
| Pregnant women over the first trimester of pregnancy | 360 (44.8) | 192 (39.7) | 0.069 |