| ★ |  Maine CDC confirms first measles case since 2019 | | — | Estados Unidos | |
| 2 |  Public health measures against measles stepped up as Singapore records 11 cases in January | | — | Singapur | 76 |
| 15 |  Union County confirms first measles case | | — | Estados Unidos | 70 |
| 17 |  Measles Outbreaks and Elimination in North America | The CommonHealth Live! | Center for Strategic & International Studies @csis | — | Estados Unidos | 70 |
| 9 |  US and French nationals test positive for hantavirus after leaving cruise ship | BBC News | | 739.2K | Reino Unido | 72 |
| 16 |  1.7 million Australians not protected against measles | ABC NEWS | ABC News (Australia) @abcnewsaustralia | 61.8K | Australia | 70 |
| 8 |  Health officials confirm case of measles in a Santa Clara County resident | | 12.6K | Estados Unidos | 73 |
| 14 |  Why measles is back — And who's really at risk | Scientific American @scientificamerican | 7.0K | Estados Unidos | 70 |
| 5 |  Virginia Department of Health moves away from CDC vaccine guidance | 13News Now @wvectelevisioninc | 4.7K | Estados Unidos | 75 |
| 11 |  Se reportan casi 1,000 casos de sarampión en 26 estados del país | Noticias Telemundo | Noticias Telemundo @noticias | 3.9K | Estados Unidos | 71 |
| 13 |  NYSDOH commissioner: Trump vaccine plan unsupported by data | WNYT NewsChannel 13 Albany @wnyt | 1.5K | Estados Unidos | 71 |
| 10 |  Measles outbreak identified in Washtenaw County after 3rd case confirmed | WXYZ-TV Detroit | Channel 7 @wxyztvdetroit | 1.1K | Estados Unidos | 71 |
| 20 |  USA - Krankenschwester fällt während Interview in Ohnmacht, nach erfolgter IMPFUNG!!! | CLIPS Livestreams @clipslivestreams1679 | 916 | — | 69 |
| 18 |  Somos uno de los países en incorporar vacuna contra Virus Sincicial Respiratorio: Gaertner Barnard | Imagen Radio @imagenradiolive | 761 | México | 70 |
| 1 |  Second measles case of 2026 recorded in Tennessee | | 456 | Estados Unidos | 77 |
| 4 |  Measles case reported in Travis County | | 446 | Estados Unidos | 76 |
| 6 |  Measles vaccination saves nearly 20 million lives across Africa | | 398 | Kenia | 74 |
| 7 |  Two measles cases reported in Grant County | Channel 3000 / News 3 Now @channel3000 | 241 | Estados Unidos | 74 |
| 19 |  La UAL celebra el Día Internacional de Concienciación sobre el Virus del Papiloma Humano | Universidad de Almería @universidaddealmeria-z3x | 214 | España | 69 |
| 3 |  Strengthening of Clinical Management and the Prevention and Control of Infection against measles | | 51 | Estados Unidos | 76 |
| 12 |  Solidarité - 300 colis alimentaires distribués aux familles précaires | | 0 | Francia | 71 |