The UK has become the first country in the world to approve the Pfizer/BioNTech coronavirus vaccine for widespread use.
British regulator, the MHRA, says the jab, which offers up to 95% protection against Covid-19 illness, is safe for roll out.
Immunisations could start within days for people in high priority groups.
The UK has already ordered 40m doses – enough to vaccinate 20m people, with two shots each.
Around 10m doses should be available soon, with the primary doses arriving within the UK within the coming days.
It is the fastest ever vaccine to travel from concept to reality, taking only 10 months to follow an equivalent developmental steps that normally span a decade.
Although vaccination can start, people still got to remain vigilant and follow coronavirus rules to prevent the spread, say experts.
That means sticking with the social distancing and face masks, and testing people that may have the virus and asking them to isolate.
What is the vaccine?
It is a replacement type called an mRNA vaccine that uses a small fragment of ordering from the pandemic virus to show the body the way to fight Covid-19 and build immunity.
An mRNA vaccine has never been approved to be used in humans before, although people have received them in clinical trials.
The vaccine must be stored at around -70C and can be transported in special boxes, packed in solid . Once delivered, it are often kept for up to 5 days during a fridge.
Who will catch on and when?
Experts have involved a provisional priority list, targeting people at highest risk. Top are care home residents and staff, followed by people over 80 and other health and social care workers.
They will receive the primary stocks of the vaccine – some as soon as next week. Mass immunisation of everyone over 50, also as younger people with pre-existing health conditions, can happen as more stocks become available in 2021. it’s given as two injections, 21 days apart, with the second dose being a booster.
What about other Covid vaccines?
There are other promising vaccines that would even be approved soon.
One from Moderna uses an equivalent mRNA approach because the Pfizer vaccine and offers similar protection. the united kingdom has pre-ordered 7m doses that would be ready by the spring.
The UK has ordered 100m doses of a special sort of Covid vaccine from Oxford University and AstraZeneca. That vaccine uses a harmless virus, altered to seem tons more just like the virus that causes Covid-19. Russia has been using another vaccine, called Sputnik, and therefore the Chinese military has approved another one made by CanSino Biologics. Both add an identical thanks to the Oxford vaccine.
Source: bbc news