In a great piece of news, the US FDA has approved the emergency use of Pfizer's Covid-19 vaccine. The FDA said that the dosing regimen is two doses of 0.3 mL each, 3 weeks apart. Commentators have described the approval as historic.

The first Covid-19 vaccine to be approved in the US could be available to millions of people across the country soon, a commentator wrote. "Among the first to be inoculated will be health-care workers and seniors living in long-term care facilities," a Bloomberg Quint report said.

Officials have been quoted as saying by the American media that its widespread use could be available within days.

Eugene Gu said that he sincerely hopes that the vaccine is safe, effective, and ends this nightmarish coronavirus pandemic causing so much human suffering. "During the FDA’s emergency use authorization, we must obtain informed consent by fully disclosing everything we know and don’t know," he wrote.

Many are hailing the scientists who have made it possible as heroes. Some have gone beyond to hail breakthroughs in the medical field over the decades. "Let’s not forget Dr Katalin Karikó, the pioneer Hungarian-American immigrant scientist who persevered for 40 years to bring mRNA to the planet. She will for sure win the Nobel Prize someday," a social media influencer wrote.