Covid vaccine hopes for more than a billion people by the end of 2021 | World news


More than a billion people could be immune to the coronavirus by the end of next year with vaccines from the first two companies to show positive results, after the latest vaccine was found to be effective at nearly 95 % in tests.As US chief infectious disease official Anthony Fauci hails “the light at the end of the tunnel,” US biotech company Moderna on Monday announced impressive results for its mRNA vaccine, a week after interim results a Pfizer / BioNTech vaccine. 90% efficiency.

Inclusion of elderly and high-risk people in the Moderna trial suggested the vaccine would protect those most vulnerable to the disease, said Peter Openshaw, professor of experimental medicine at Imperial College London, who described the results. as “extremely exciting”.

Although more expensive, Moderna’s vaccine could potentially offer a major advantage over that of Pfizer, which requires ultra-cold freezing between -70 ° C (-94 ° F) and -80 ° C. production facility to the patient.

Moderna said they have improved shelf life and stability, meaning their vaccine can be stored for six months at -20 ° C for shipping and long-term storage, and at standard refrigeration temperatures of 2 ° C to 8 ° C for 30 days.

Moderna said it could potentially manufacture 1 billion doses by the end of 2021, adding an additional 1.3 billion from Pfizer / BioNTech within the same time frame. Both vaccines require two doses and are to be evaluated by regulators in the coming weeks.

Speaking at a press briefing, Fauci, the director of the U.S. National Institute of Allergy and Infectious Diseases, which co-developed the vaccine, praised the Moderna jab and others still in the works. testing.

He urged people to continue to follow the guidelines to fight the disease. “We must not let the realization of an effective vaccine make us feel that we can let our guard down… In fact, that should be an incentive to double down, because then we will ultimately have the synergy between a vaccine and a public health measure. which will get us out of the very difficult situation.

Stéphane Bancel, Managing Director of Moderna, said: “It has been incredible teamwork. I think none of us probably thought we could get to this place in the last 10 months.

Moderna’s interim analysis, based on the first 95 patients with confirmed Covid infections, found the candidate vaccine to be 94.5% effective. The company said it plans to apply to the US regulator, the Food and Drug Administration (FDA), for emergency use authorization in the coming weeks. In the analysis, 90 of the patients had received the placebo and the other five had received the vaccine.


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