Why does it take twelve to eighteen months to develop coronavirus vaccines?

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  • 3 weeks ago

    It's not so much that the vaccine takes that long to be produced as it is the FDA to actually approve it. Many already approved medications and vaccines once approved literally go thru a 10 year process to maintain their patent. Before you know it there may even be a generic option for the vaccine in a decade for those who don't have healthcare. 

  • 3 weeks ago

    There will never be a vaccine. The virus will continue to mutate.

  • Anonymous
    3 weeks ago

    A vaccine it takes many trials. There may be a vaccine already available. These trials may be private to the population. Who's to say they have given it to the patients in the hospitals and they end up dying from the vaccine. Even though they may have volunteers doing the trial regiments but they may at times need to get to a person who may be in the ICU and may not have much time to live so they give the vaccine to that person to test it. No media coverage will know that because of the privacy of this drug trial. Even when this drug is available they have to decide who will be eligible for it.  For example, they give it to a person 70 years old with current health issues and they pass away about 6 months after getting this vaccine would they have wasted a vaccine considering they will only be allowed to make a limited supply of it. They have to figure out how much of this drug will be safe for young children, youth and the elderly. Keep in mind they may not be ready for the swarm of people who want this vaccine. Also, will those who do not wear a face mask will they want to get that vaccine, probably not so we are not getting rid of this virus with just a vaccine. I know some people do not get the yearly flu shot. In the US, they may be waiting until after the election to see who will make it mandatory to get vaccinated and free of cost. The insurance companies may not want to cover this vaccine. Basically, it's time and money for this vaccine to be completed.

  • Anonymous
    3 weeks ago

    they already have it. it's all a hoax

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  • Mike
    Lv 7
    3 weeks ago

    It might take  3  to 5 years or longer

  • 3 weeks ago

    Indeed here seems that there are a thing to be considered

    Vacine itself take few months to be made.

    Problem is that it needs to be tested several times, be corrected if there are any thing wrong, and it is  that make vaccines take a lot of time to be ready.

  • D g
    Lv 7
    3 weeks ago

    The vaccines we take for flu are started the spring or summer of the year they are given in winter 

    So a vaccine supply takes time to grow 

    The used to use eggs to incubate the vaccine I'm not sure if they do it differently now

  • 3 weeks ago

    It's the testing and that cannot be rushed. Once they develop a potential vaccine, it's given to healthy volunteers. Those people are exposed to the virus, then they wait weeks to see if anybody gets Covid-19. If not, they wait another month or two and repeat the process. Then it's "rinse & repeat".. until they're sure the vaccine provides protection for at least 6 months. Once that's done, they start the same testing process on children, the elderly, pregnant women, etc, to make sure it's safe for them as well. So that's another 6 months at least.

    The production of a vaccine presents its own unique problems. For instance, one of the vaccines currently being tested is only stable when chilled-- it deteriorates rapidly at room temperature. That would make manufacture & distribution of it virtually impossible. So the challenge is to come up with a vaccine that's both effective AND one stable enough to be mass produced.

  • Most vaccines take years to develop.  There is a rush to develop one for covid-19.  The traditional method of creating a vaccine for a virus infection is to give you a small dose of the dead virus.  That makes your immune system produce antibodies without making you ill.  This technique does not work with coronaviruses.  Instead it has been necessary to map the DNA of the coronavirus that causes covid-19 and work on its vulnerabilities.  That bit has been done.  Now potential vaccines based on these vulnerabilities have to be tested to make sure they work and that can take months.  Then you have to set up a production line to produce billions of doses,  All of this is delayed by political pressures - like the orange idiot saying it can be cured by drinking bleach.

  • 3 weeks ago

    You tell people how those books entered the library in the 1800's, yet you was not there ?

    So if a virus was traced back to Fujima -🔜Witch🔙 came back first, CoVid or Betamax, because none natives seem susceptible and I keep hearing big lips say Guwarn Dong, then they like slurp and suck through their teeth with memories of willie in pongy poo and white Angels vaginal bacteria.

    Yet Guangdong was the Nationwide distribution of varicella-zoster virus clades in China established in 2010

    The Pharma-C0ck-in-e-tics are profound and quite outstanding.

    Wonderful scenery though

    Armein Hell, why won't you reap the benefits of your indulgence if the world was placed in as a pretext - But you acquired it?

    A or B?

    A)On Her Majesty's Secret Service

    In the film, Bond faces Blofeld (Telly Savalas), who is planning to hold the world ransom by the threat of sterilising the population 

    B) War of the Worlds

    In the film the blood sucking aliens succumb to a virus

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