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They get samples from patients from labs and in the US from the Centers for Disease Control and Prevention (CDC) and then once it is decided exactly which strain of a particular flu will be best (easiest to grow quickly, most prevalent strain in the location, etc.), they grow the selected virus in eggs a lab. When they have enough virus particles to start making the vaccine, then they either inactivate them ("kill" them-these are used for flu vaccine injections) or they weaken them chemically (they make them too weak to give you the flu, these are used in the nasal spray flu vaccinations).
Because they are grown in eggs, this is why they will ask you if you are allergic to eggs before they give you the vaccine.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoVaccines came from England in the 18th century when Edward Jenner found that by taking a girl's pus who had had cowpox and then injecting it into a boy who had not had cowpox and then injecting the pus of a smallpox sufferer into the boy who then didn't catch smallpox because by extraxcting pus Edward Jenner had made the boy immune system stronger.
Wiki User
∙ 15y agoinjections
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How are vaccines developed and why?
Also if they werent other diseases may not have even found a cure as many developed vaccines cure more things!!!! ... Thankyou for searching this :)
What and which are the antigenic characeristics of mareks disease?
Current vaccines use a combination of vaccines consisting of HVT, attenuated MDV strain and gallid herpesvirus type 3. These are the antigens that are found and protect the chicken flock.
What are edible vaccines?
Edible vaccines are vaccines produced in plants genetically modified through bioengineering.
How vaccines prevent infection?
Vaccines do not prevent infection. Vaccines prepare the immune system to fight infection by allowing the immune system to produce antibodies to a specific invading organism, kill it, and remember it in the future. In vaccines, this organism is often weakened or dead. If the invading organism is found by the immune system in the future following immunization, the immune system remembers it and produces the specific antibodies needed to kill it quickly.
Does the mmr vaccine cause autism?
MMR vaccines, as well as other vaccines, do not cause autism. Extensive research has been done into the relationship between autism and vaccines and none has been found. The doctor who originally reported a correlation has since retracted his statements, admitted his results were faked, and lost his medical license.
Do vaccines cause AIDS?
Vaccines do not cause AIDS.
What year as the cure for cholera found in?
Wilhelm Kolle who was a German bacteriologist was the first to discover the cholera and typhoid vaccines in 1896.
Definition of the conventional vaccines?
Conventional vaccines consist of whole pathogenic organisms, which may either be killed or live vaccines; the virulence of pathogens is greatly reduced in attenuated vaccines. This is classified into 2 categories :a)Live or attenuated vaccines; (eg : BCG vaccine)b)Inactivated vaccines (eg : Salk polio & Pertussisvaccines)
What 2 vaccines does medicare part b cover?
There are 3 Vaccines covered in Medicare Part B are as follows,Influenza vaccines are covered once/flu seasonPneumococcal vaccines are covered Once in lifetimeHepatitis B vaccines are covered At intermediate high risk
Is there ban on hpv vaccines?
There is no ban on HPV vaccines. In fact, in some states girls are required to receive HPV vaccines for school.
What are cell culture based vaccines?
cell culture vaccines are vaccines produced from cells that are cultured and grown under controlled conditions.
Is there any vaccine to cancer yet?
There are vaccines to cancer. Vaccines are used during an early stage of cancer to get better results. However, it is still possible to treat existing cancer in a later stage with vaccines. Those kind of vaccines are called therapeutic cancer vaccines.
