🔴 Eight months on from the UK’s first national lockdown, a Covid vaccine is finally on the horizon.

We look back at the history of immunisations, featuring a groundbreaking farm animal and a commander-in-chief with skin in the game.

~thread

https://www.telegraph.co.uk/health-fitness/body/past-vaccines-changed-world-rollout-tells-us-challenges-ahead/
An 18th-century chicken called Blossom helped pioneer a smallpox vaccine.

True or false?
False.

It was, in fact, a cow from Gloucester that passed on the cowpox virus to a milkmaid named Sarah. A sample of the infection was inserted into the skin of a healthy child, who subsequently became immune to smallpox

https://www.telegraph.co.uk/health-fitness/body/past-vaccines-changed-world-rollout-tells-us-challenges-ahead/
Of all the vaccines developed over the subsequent century, it was the polio one which caught the public imagination.

Which US president contracted the disease and later championed the vaccine?
It was Roosevelt.

During his time in office between 1933-1945, he was unable to walk unaided and relied on a wheelchair in private

https://www.telegraph.co.uk/health-fitness/body/past-vaccines-changed-world-rollout-tells-us-challenges-ahead/
In June 2020, it was announced the longest and deadliest outbreak of Ebola to hit the Democratic Republic of Congo had ended.

The Ervebo injection faced the same challenges as the Pfizer Covid vaccine. What was the main issue?
More than 300,000 people were immunised with Ervebo, which was the first Ebola vaccine to be fully licensed.

To work successfully, it needs to be frozen between -60C and -80C to maintain potency. The Pfizer vaccine must also be stored at -70C

https://www.telegraph.co.uk/health-fitness/body/past-vaccines-changed-world-rollout-tells-us-challenges-ahead/
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