Read on Twitter
The COVAX Facility aims to provide fair & equal access to the Covid vaccine for 7.8 billion people.
To commemorate
's entry into COVAX, I'll spend this week on some fun vaccine facts.
Fact 1: Edward Jenner discovered the concept of vaccination in 1796, ~220 years ago. (1/6)
To commemorate
's entry into COVAX, I'll spend this week on some fun vaccine facts.Fact 1: Edward Jenner discovered the concept of vaccination in 1796, ~220 years ago. (1/6)
For many years, he heard stories that dairymaids donât get smallpox if theyâve had cowpox previously. Dairymaids spend a lot of time with cows to make milk or cheeses in a dairy.
This pic is cowpox. (2/6)
This pic is cowpox. (2/6)
A young dairymaid had fresh cowpox. Jenner transferred some material from her skin lesions to an 8-year old boyâs skin. The boy had some mild fever but was otherwise quite well.
2 months later, Jenner repeated with smallpox but the boy had no fever.
This pic is smallpox. (3/6)
2 months later, Jenner repeated with smallpox but the boy had no fever.
This pic is smallpox. (3/6)
This proves the theory that âgiving people very small amounts of a virus or bacteria can trigger their immune system to help fight future infections of the same virus or bacteriaâ.
This pic shows how vaccines work. (4/6)
This pic shows how vaccines work. (4/6)
The Latin word for cow is vacca, and cowpox is vaccinia.
Therefore, Jenner decided to call this new concept âvaccinationâ. (5/6)
Therefore, Jenner decided to call this new concept âvaccinationâ. (5/6)
Although⊠some historians think that Jenner used horsepox, not cowpox. So instead of vaccine, perhaps we should call it âequusineâ!
This shows that science continues to progress, because our instruments & tools become more precise & sophisticated.
(6/6)
This shows that science continues to progress, because our instruments & tools become more precise & sophisticated.
(6/6)
References:
1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1200696/
2. https://www.britannica.com/biography/Edward-Jenner
3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3035531/
4. https://medlineplus.gov/ency/imagepages/19059.htm
5. https://www.immunology.org/celebrate-vaccines/public-engagement/guide-childhood-vaccinations/how-vaccines-work
6. https://www.sciencemag.org/news/2017/10/why-word-vaccine-probably-all-wrong
1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1200696/
2. https://www.britannica.com/biography/Edward-Jenner
3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3035531/
4. https://medlineplus.gov/ency/imagepages/19059.htm
5. https://www.immunology.org/celebrate-vaccines/public-engagement/guide-childhood-vaccinations/how-vaccines-work
6. https://www.sciencemag.org/news/2017/10/why-word-vaccine-probably-all-wrong
