| ★ |  The evidence is indisputable: Vaccines save lives. | | 26.7K | Estados Unidos | |
| 20 |  New flu preventative could outperform vaccines | Science Magazine @sciencemagazine | — | Estados Unidos | 75 |
| 6 |  Cutting America's support for vaccines is a bad idea | | 218.2K | Estados Unidos | 79 |
| 13 |  VACUNA INFLUENZA | Alcaldía de Cochabamba @alcaldiadecochabamba4900 | 62.8K | Bolivia | 76 |
| 2 |  This vaccine could stop the next pandemic | The Economist | The Economist @theeconomist | 18.1K | Reino Unido | 80 |
| 7 |  Cancer Treatment Breakthrough? Personalized mRNA Vaccine Shows Promise Against Melanoma | | 14.9K | India | 77 |
| 16 |  The vaccine preventing the deadly cancer, HPV | BBC News | | 14.1K | Reino Unido | 76 |
| 11 |  A quoi ça sert un vaccin ? Pourquoi sont-ils obligatoires ? Comment fabrique-ton un vaccin ? | Info ou Mytho ? @infooumytho | 8.4K | Francia | 76 |
| 4 |  The Science of Vaccinology - Unlocking the Secrets of Disease Prevention and Immunity | BioTech Whisperer @biotechwhisperer | 2.4K | Estados Unidos | 79 |
| 8 |  Measles vaccination saves nearly 20 million lives across Africa | | 398 | Kenia | 77 |
| 18 |  (S013) COVID-19 Vaccines: Are They Safe? | North Dakota Public Health Training Network @ndphtn | 315 | — | 75 |
| 15 |  (S012) COVID-19 Vaccines: Do They Work? | North Dakota Public Health Training Network @ndphtn | 209 | — | 76 |
| 1 |  The Role of Vaccines in Public Health | Microlearning Daily @microlearningdaily | 174 | Singapur | 83 |
| 9 |  Vaccines: Facts vs. Fiction | Health Matters | KSPS PBS | KSPS PBS Public TV @ksps_pbs | 154 | Estados Unidos | 76 |
| 10 |  Ask the Expert: Is the Flu Vaccine Effective? | University of Maryland Medical System @universityofmarylandmedica3585 | 127 | Estados Unidos | 76 |
| 3 |  la fabrication du vaccin | Sciense-pro @sciense-pro9529 | 111 | Francia | 80 |
| 12 |  What's In A Vaccine? | The Partnership In Education @thepartnershipineducation | 65 | Estados Unidos | 76 |
| 19 |  Understanding Vaccine Hesitancy - What You Need to Know (2 Minutes) | Microlearning Daily @microlearningdaily | 38 | Singapur | 75 |
| 5 |  The Future of Vaccines: What to Know in a Changing Landscape | National Urban League @naturbanleague | 27 | — | 79 |
| 17 |  Navigating Vaccines in the Workplace: What Should Your Nonprofit Do? | Nonprofit Leadership Center @nlctb | 3 | — | 75 |