Table 1.
Main features of the sample.
| Journalistic Genres | n | % |
| News | 57 | 43.5 |
| Feature | 29 | 22.1 |
| Short news | 23 | 17.6 |
| Opinion | 15 | 11.5 |
| Interview | 4 | 3.1 |
| Obituary | 1 | 0.8 |
| Biography | 2 | 1.5 |
| Total | 131 | 100.0 |
| Tone of the Article | ||
| Positive | 58 | 44.3 |
| Neutral | 55 | 42.0 |
| Negative | 18 | 13.7 |
| Total | 131 | 100.0 |
| Type of Vaccine | ||
| Ebola | 13 | 9.9 |
| Chickenpox | 12 | 9.2 |
| Diphtheria; Meningitis | 8 | 6.1 |
| Influenza; Malaria | 7 | 5.3 |
| Cancer; Zika; Measles | 6 | 4.6 |
| Tuberculosis; HIV | 5 | 3.8 |
| Smallpox | 4 | 3.1 |
| Hepatitis; Whooping cough; Human Papillomavirus; Polio | 3 | 2.3 |
| Pneumococcus | 2 | 1.5 |
| Alzheimer disease; Autism; Dengue; Yellow fever; Gonorrhea; Mumps | 1 | 0.8 |
| General/No identified | 24 | 18.3 |
| Total | 131 | 100 |
| Frames | ||
| Human interest | 69 | 52.7 |
| Conflict | 43 | 32.8 |
| Responsibility | 9 | 6.9 |
| Economic | 6 | 4.6 |
| Morality | 4 | 3.1 |
| Total | 131 | 100.0 |
| Length (Number of Words) | ||
| 1–100 | 15 | 11.4 |
| 101–200 | 10 | 0.8 |
| 201–300 | 12 | 9.2 |
| 301–400 | 19 | 15.5 |
| 401–500 | 17 | 13.0 |
| 501–600 | 12 | 9.2 |
| 601–700 | 12 | 9.2 |
| 701–800 | 13 | 9.9 |
| 801–900 | 11 | 8.4 |
| 901 | 10 | 0.8 |
| Min | 32 | |
| Max | 2158 | |
| Mean | 377.7 | |
| Median | 480 | |
| Standard deviation | 332.0 |