FDA, tiniyak na mabisa ang COVID-19 vaccines vs. bagong variants; efficacy ng ilan pang COVID-19 vaccines vs. Delta variant, patuloy na pinag-aaralan
- 3 years ago
FDA, tiniyak na mabisa ang COVID-19 vaccines vs. bagong variants; efficacy ng ilan pang COVID-19 vaccines vs. Delta variant, patuloy na pinag-aaralan