ඇයි මේ vaccine single dose එකකින් ආවෙ නැත්තේ?
එකපාරින් වැඩේ ඉවර නොකර මොකද්ද මෙහෙම දෙන එකේ බලාපොරොත්තුව?
testing කරන්නෙ ටික ටික ද?
එකපාරින් වැඩේ ඉවර නොකර මොකද්ද මෙහෙම දෙන එකේ බලාපොරොත්තුව?
testing කරන්නෙ ටික ටික ද?
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වැක්සීන් ප්රශ්න?
- Thread starter jhnnwp
- Start date
This is mainly because a single dose does not elicit the immune response required to beat the infection. There's a boost effect from our immune system with the second dose. Basically, the first dose creates an immune response, while the second dose is a booster that strengthens your immunity to the virus. That's why it's called prime and boost. This comes in two forms, Homologous & Heterologous - in the first form the same vaccine is used (eg AZ, Pfizer) and the second two vaccines are used (Russsian Sputnik V ).
Generally Heterologous method is more effective as it avoids any possible interference due to priming from the first.
That's the reason why Sputnik has high efficacy and why I always advocated for mixing of vaccines. With two different vaccines the outcome could be much better. Of course you need to test and find out.
Also note that there are some Covid vaccines which are single dose. The J&J is single dose. Sputnik Light is another. Also there are single dose vaccines under trial. The Australian DNA vaccine developed by the University of Sydney is single dose and protects against some variants too.
Additionally, note that there are many common multi-dose vaccine regimes. eg MMR, Hep A, Hep B, Shingles.....etc. It's not an uncommon practice.
So it's not marketing alone for maximising the profits, there are other reasons behind it. Don't believe Fakebook.
Generally Heterologous method is more effective as it avoids any possible interference due to priming from the first.
That's the reason why Sputnik has high efficacy and why I always advocated for mixing of vaccines. With two different vaccines the outcome could be much better. Of course you need to test and find out.
Also note that there are some Covid vaccines which are single dose. The J&J is single dose. Sputnik Light is another. Also there are single dose vaccines under trial. The Australian DNA vaccine developed by the University of Sydney is single dose and protects against some variants too.
Additionally, note that there are many common multi-dose vaccine regimes. eg MMR, Hep A, Hep B, Shingles.....etc. It's not an uncommon practice.
So it's not marketing alone for maximising the profits, there are other reasons behind it. Don't believe Fakebook.
I like the way you elaborate , thanksThis is mainly because a single dose does not elicit the immune response required to beat the infection. There's a boost effect from our immune system with the second dose. Basically, the first dose creates an immune response, while the second dose is a booster that strengthens your immunity to the virus. That's why it's called prime and boost. This comes in two forms, Homologous & Heterologous - in the first form the same vaccine is used (eg AZ, Pfizer) and the second two vaccines are used (Russsian Sputnik V ).
Generally Heterologous method is more effective as it avoids any possible interference due to priming from the first.
That's the reason why Sputnik has high efficacy and why I always advocated for mixing of vaccines. With two different vaccines the outcome could be much better. Of course you need to test and find out.
Also note that there are some Covid vaccines which are single dose. The J&J is single dose. Sputnik Light is another. Also there are single dose vaccines under trial. The Australian DNA vaccine developed by the University of Sydney is single dose and protects against some variants too.
Additionally, note that there are many common multi-dose vaccine regimes. eg MMR, Hep A, Hep B, Shingles.....etc. It's not an uncommon practice.
So it's not marketing alone for maximising the profits, there are other reasons behind it. Don't believe Fakebook.
If it helps anyone -then my time isn't wasted. Also the reply should be clear and concise enough.
Single dose vaccine tiyei neda... american ewa
------ Post added on Aug 10, 2021 at 7:51 PM
me yaka wishwakosyakThis is mainly because a single dose does not elicit the immune response required to beat the infection. There's a boost effect from our immune system with the second dose. Basically, the first dose creates an immune response, while the second dose is a booster that strengthens your immunity to the virus. That's why it's called prime and boost. This comes in two forms, Homologous & Heterologous - in the first form the same vaccine is used (eg AZ, Pfizer) and the second two vaccines are used (Russsian Sputnik V ).
Generally Heterologous method is more effective as it avoids any possible interference due to priming from the first.
That's the reason why Sputnik has high efficacy and why I always advocated for mixing of vaccines. With two different vaccines the outcome could be much better. Of course you need to test and find out.
Also note that there are some Covid vaccines which are single dose. The J&J is single dose. Sputnik Light is another. Also there are single dose vaccines under trial. The Australian DNA vaccine developed by the University of Sydney is single dose and protects against some variants too.
Additionally, note that there are many common multi-dose vaccine regimes. eg MMR, Hep A, Hep B, Shingles.....etc. It's not an uncommon practice.
So it's not marketing alone for maximising the profits, there are other reasons behind it. Don't believe Fakebook.
------ Post added on Aug 10, 2021 at 7:51 PM
