who discover vaccine for the first time and which disease? dicuss the principal of vaccination
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ᏔᎻᎪͲ ᏆՏ Ꭺ ᏙᎪᏟᏟᏆΝᎬ?
A vaccine is a preparation of a weakened infectious agent or their products that can be injected or given orally to prevent a specific disease.
Tʜᴇ sᴛᴏʀʏ ᴏғ ғɪʀsᴛ ᴠᴀᴄᴄɪɴᴇ.
An english physician, Edward Jenner observed that people who got cowpox, a mild disease, did not suffer from smallpox, severe disease. Usually the girls who milked cows got cowpox, disease that causes rashes on hands.
Jenner decided to test his observation on cowpox and smallpox.
Jenner took some pus of a cowpox from an infected person and infected to a person who was healthy. The person soon got cowpox who was recovered easily. Jenner now injected smallpox infection in persons arm but he did not got smallpox.
It tells us how jenner made rhe first vaccine against smallpox using microbes of cowpox, a similar but less severe disease.
Tʜᴇ Pʀɪɴᴄɪᴘᴀʟ ᴏғ ᴠᴀᴄᴄɪɴᴀᴛɪON
The immune system has a memory of invading microbes. It recognises them and fight them later if the invade again. When an infectious agent invades for the first time the anti bodies are produced slowly. After destroying the antigen they remain in body.
If the same antigen attacks second time, the antibodies are produced much faster this time.
As a result, we do not suffer from severe form of disease.
This is the basis of vaccination
A vaccine is a preparation of a weakened infectious agent or their products that can be injected or given orally to prevent a specific disease.
Tʜᴇ sᴛᴏʀʏ ᴏғ ғɪʀsᴛ ᴠᴀᴄᴄɪɴᴇ.
An english physician, Edward Jenner observed that people who got cowpox, a mild disease, did not suffer from smallpox, severe disease. Usually the girls who milked cows got cowpox, disease that causes rashes on hands.
Jenner decided to test his observation on cowpox and smallpox.
Jenner took some pus of a cowpox from an infected person and infected to a person who was healthy. The person soon got cowpox who was recovered easily. Jenner now injected smallpox infection in persons arm but he did not got smallpox.
It tells us how jenner made rhe first vaccine against smallpox using microbes of cowpox, a similar but less severe disease.
Tʜᴇ Pʀɪɴᴄɪᴘᴀʟ ᴏғ ᴠᴀᴄᴄɪɴᴀᴛɪON
The immune system has a memory of invading microbes. It recognises them and fight them later if the invade again. When an infectious agent invades for the first time the anti bodies are produced slowly. After destroying the antigen they remain in body.
If the same antigen attacks second time, the antibodies are produced much faster this time.
As a result, we do not suffer from severe form of disease.
This is the basis of vaccination
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