4 ms·

That is old definition, now in accordance to the new definition immunity can only be achieved through vaccination. https://twitter.com/simondolan/status/1341306

That is old definition, now in accordance to the new definition immunity can only be achieved through vaccination. https://twitter.com/simondolan/status/1341306917076021248 https://twitter.com/simondolan/status/1341306917076021248

detaro 6y ago
A random Q&A page is not "a new definition" as an universal standard. Also, quoting from that page today https://www.who.int/news-room/q-a-detail/coronavirus-disease-covid-19-serology https://www.who.int/news-room/q-a-detail/coronavirus-disease... > 'Herd immunity', also known as 'population immunity', is the indirect protection from an infectious disease that happens when a population is immune either through vaccination or immunity developed through previous infection. WHO supports achieving 'herd immunity' through vaccination, not by allowing a disease to spread through any segment of the population, as this would result in unnecessary cases and deaths.
COGlory 6y ago
That's herd immunity. Individual immunity is different.
onethought 6y ago
Guess they never thought world leaders of world leading nations would need to be told: “don’t intentionally spread a deadly pandemic”.
- highmastdon 6y ago
  Well a deadly pandemic wouldn’t need immunity, they’d all die. Regarding parent; I believe it was known that the measles vaccine wouldn’t protect for life but for a fair amount of time where having to go through the disease would’ve given life lasting immunity.
andi999 6y ago
The new def has a problem though:'protected from ... passing it on'. In my country we are told even after gotten the vaccine we should continue with the measures, because one can still pass it on (meaning it is supposed that the corona vaccine doesnt prevent infection, but prevents all severe cases)
- astrange 6y ago
  Each different vaccine may or may not give sterilizing immunity (whether or not you can pass it on without symptoms). It has to be proven for each one and this hasn't been done yet. The nasal vaccines, which aren't approved yet, seem more likely to do this.
  - andi999 6y ago
    Sentence is a bit ambigous. Are the nasa vaccines likely to give sterilizing immunity or the opposite?
    - astrange 6y ago
      They're more likely to work, because they go in the places (your nose) that need to be sterilized. But it's only theoretical.
      - dragonwriter 6y ago
        > They're more likely to work, because they go in the places (your nose) that need to be sterilized. That doesn't make much sense; vaccines aren't topical treatments for current infections but systemic preparation against future infections.
        astrange 6y ago
        There's special antibodies for the nose and other membranes. The immune system is incredibly complicated. https://en.wikipedia.org/wiki/Immunoglobulin_A https://en.wikipedia.org/wiki/Immunoglobulin_A
  - Vecr 6y ago
    How easy would it be it the future to get a different vaccine course if the one you ended up with was not sterilizing? I assume you would have to pay with your own money, but would you also have to go to a different country and "forget" your immunization record somewhere after you arrive?

detaro 6y ago

A random Q&A page is not "a new definition" as an universal standard. Also, quoting from that page today https://www.who.int/news-room/q-a-detail/coronavirus-disease-covid-19-serology https://www.who.int/news-room/q-a-detail/coronavirus-disease... > 'Herd immunity', also known as 'population immunity', is the indirect protection from an infectious disease that happens when a population is immune either through vaccination or immunity developed through previous infection. WHO supports achieving 'herd immunity' through vaccination, not by allowing a disease to spread through any segment of the population, as this would result in unnecessary cases and deaths.

COGlory 6y ago

That's herd immunity. Individual immunity is different.

onethought 6y ago

Guess they never thought world leaders of world leading nations would need to be told: “don’t intentionally spread a deadly pandemic”.

highmastdon 6y ago
Well a deadly pandemic wouldn’t need immunity, they’d all die. Regarding parent; I believe it was known that the measles vaccine wouldn’t protect for life but for a fair amount of time where having to go through the disease would’ve given life lasting immunity.

andi999 6y ago

The new def has a problem though:'protected from ... passing it on'. In my country we are told even after gotten the vaccine we should continue with the measures, because one can still pass it on (meaning it is supposed that the corona vaccine doesnt prevent infection, but prevents all severe cases)

astrange 6y ago
Each different vaccine may or may not give sterilizing immunity (whether or not you can pass it on without symptoms). It has to be proven for each one and this hasn't been done yet. The nasal vaccines, which aren't approved yet, seem more likely to do this.
- andi999 6y ago
  Sentence is a bit ambigous. Are the nasa vaccines likely to give sterilizing immunity or the opposite?
  - astrange 6y ago
    They're more likely to work, because they go in the places (your nose) that need to be sterilized. But it's only theoretical.
    - dragonwriter 6y ago
      > They're more likely to work, because they go in the places (your nose) that need to be sterilized. That doesn't make much sense; vaccines aren't topical treatments for current infections but systemic preparation against future infections.
      - astrange 6y ago
        There's special antibodies for the nose and other membranes. The immune system is incredibly complicated. https://en.wikipedia.org/wiki/Immunoglobulin_A https://en.wikipedia.org/wiki/Immunoglobulin_A
- Vecr 6y ago
  How easy would it be it the future to get a different vaccine course if the one you ended up with was not sterilizing? I assume you would have to pay with your own money, but would you also have to go to a different country and "forget" your immunization record somewhere after you arrive?