Russia's Sputnik V coronavirus vaccine gives around 92% protection against COVID-19.
This is according to late stage trial results published in The Lancet – a weekly peer-reviewed general medical journal.
It has also been deemed to be safe – and offer complete protection against hospitalisation and death.
The vaccine was initially met with some controversy after being rolled out before the final trial data had been released.
But scientists said its benefit has now been demonstrated.
It joins the ranks of proven vaccines alongside Pfizer, Oxford/AstraZeneca, Moderna and Janssen.
The Sputnik vaccine works in a similar way to the Oxford/AstraZeneca jab developed in the UK, and the Janssen vaccine developed in Belgium.
It uses a cold-type virus, engineered to be harmless, as a carrier to deliver a small fragment of the coronavirus to the body.
Safely exposing the body to part of the virus's genetic code in this way allows it to recognise the threat and learn to fight it off, without risking becoming ill.
After being vaccinated, the body starts to produce antibodies specially tailored to the coronavirus.
This means the immune system is primed to fight coronavirus when if it encounters it for real.
It can be stored at temperatures of between 2 and 8C degrees (a standard fridge is roughly 3-5C degrees) making it easier to transport and store.
[Source: BBC]
