| Approach title | Positive | Total | |
| Texblob | COVID-19: Oxford University vaccine shows 70% protection | 288 | 479 |
| COVID-19: Oxford/AstraZeneca vaccine approved for use in UK | 250 | 465 | |
| Moderna’s vaccine is highly effective, FDA says, clearing way for second vaccine | 241 | 471 | |
| Pfizer and BioNTech to Submit Emergency Use Authorization Re-quest Today to the U.S. FDA for COVID-19 vaccine | 235 | 451 | |
| Moderna says new data shows COVID vaccine is more than 94% effective, plans to ask FDA for emergency clearance later Monday | 234 | 469 | |
| Pfizer’s Coronavirus vaccine arrive in Chicago O hare international airport | 88 | 462 | |
| RoBERTa | UK authorises Pfizer-BioNTech COVID-19 vaccine | 129 | 448 |
| COVID-19: Oxford University vaccine shows 70% protection | 128 | 479 | |
| Pfizer and BioNTech to Submit Emergency Use Authorization Re-quest Today to the U.S. FDA for COVID-19 Vaccine | 96 | 451 | |
| Moderna’s vaccine is highly effective, FDA says, clearing way for second vaccine | 95 | 471 | |
| First doses of Pfizer coronavirus vaccine has flown to US from Belgium | 94 | 474 | |
| Texblob and RoBERTa | COVID-19: Oxford University vaccine shows 70% protection | 104 | 227 |
| UK authorises Pfizer-BioNTech COVID-19 vaccine | 91 | 239 | |
| First doses of Pfizer coronavirus vaccine has flown to US from Belgium | 78 | 233 | |
| Pfizer and BioNTech to Submit Emergency Use Authorization Re-quest Today to the U.S. FDA for COVID-19 vaccine | 77 | 212 | |
| Moderna’s vaccine is highly effective, FDA says, clearing way for second vaccine | 71 | 206 | |