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It IS a live virus in many cases: "A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or kill

It IS a live virus in many cases: "A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins." https://en.wikipedia.org/wiki/Vaccine https://en.wikipedia.org/wiki/Vaccine I have nothing against vaccines, but my understanding is that you CAN get sick from it.

ceejayoz 7y ago
The definition of "sick" matters here. A dead-virus vaccine like the flu shot cannot give you the flu. It can cause "sick" side-effects (for example: https://en.wikipedia.org/wiki/Guillain%E2%80%93Barr%C3%A9_syndrome https://en.wikipedia.org/wiki/Guillain%E2%80%93Barr%C3%A9_sy..., or the fairly common aches and pains from the immune response), but not the flu. A live-virus vaccine like the flu nasal spray can give you the flu, especially if you're immune suppressed or something along those lines.
- throw1234651234 7y ago
  I don't understand the point of contention - a lot of vaccines have historically included a live virus that has been stored for a while, often in a frozen and/or dried out form. Are you saying that a lot of vaccines are NOT weakened versions of the actual virus which can give you the sickness if your immune system is weak? Or are you saying that the commonly used flu vaccine in the US does not utilize a live form of the virus? If you are talking about the specifics of the latter, you could be right, I am not an expert.
  - ceejayoz 7y ago
    The latter. https://www.cdc.gov/flu/prevent/misconceptions.htm https://www.cdc.gov/flu/prevent/misconceptions.htm > No, flu vaccines cannot cause flu illness. Flu vaccines given with a needle (i.e., flu shots) are currently made in two ways: the vaccine is made either with a) flu viruses that have been ‘inactivated’ (killed) and that therefore are not infectious, or b) using only a single gene from a flu virus (as opposed to the full virus) in order to produce an immune response without causing infection. This is the case for recombinant influenza vaccines.
    - throw1234651234 7y ago
      Fair enough. Though I do think people need to understand that OTHER vaccines do use live viruses, and that's where the confusion comes from.

ceejayoz 7y ago

The definition of "sick" matters here. A dead-virus vaccine like the flu shot cannot give you the flu. It can cause "sick" side-effects (for example: https://en.wikipedia.org/wiki/Guillain%E2%80%93Barr%C3%A9_syndrome https://en.wikipedia.org/wiki/Guillain%E2%80%93Barr%C3%A9_sy..., or the fairly common aches and pains from the immune response), but not the flu. A live-virus vaccine like the flu nasal spray can give you the flu, especially if you're immune suppressed or something along those lines.

throw1234651234 7y ago
I don't understand the point of contention - a lot of vaccines have historically included a live virus that has been stored for a while, often in a frozen and/or dried out form. Are you saying that a lot of vaccines are NOT weakened versions of the actual virus which can give you the sickness if your immune system is weak? Or are you saying that the commonly used flu vaccine in the US does not utilize a live form of the virus? If you are talking about the specifics of the latter, you could be right, I am not an expert.
- ceejayoz 7y ago
  The latter. https://www.cdc.gov/flu/prevent/misconceptions.htm https://www.cdc.gov/flu/prevent/misconceptions.htm > No, flu vaccines cannot cause flu illness. Flu vaccines given with a needle (i.e., flu shots) are currently made in two ways: the vaccine is made either with a) flu viruses that have been ‘inactivated’ (killed) and that therefore are not infectious, or b) using only a single gene from a flu virus (as opposed to the full virus) in order to produce an immune response without causing infection. This is the case for recombinant influenza vaccines.
  - throw1234651234 7y ago
    Fair enough. Though I do think people need to understand that OTHER vaccines do use live viruses, and that's where the confusion comes from.