🧪 Scientific discoveries
The vaccines that changed human history
- 1 Smallpox vaccine (1796)
- 2 Cholera and typhoid vaccines (1896)
- 3 Plague vaccine (1897)
يوسف العلوي
❤ 0 · ▲ 8 · 18 items
يوسف العلوي
@youssef-alaoui98 · member since Aug 24, 2019
1 list · 18 items · 1 vote