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As thecoronavirus pandemic rage withShibing case numbers In the United States of all the United States, many of us are looking for a light at the end of the tunnel. For some people, all eyes are on the potential of acoronavirus vaccine, who could go a long way towards the stop of the epidemic in his tracks. The reality, however, is a little more complicated than that. AsAnthony Fauci, MD, Director of the National Institute of Allergy and Infectious Diseases (NIAID), recently explained to CNN, it is unlikely that the CVIV-19 vaccine is sufficient to help us achieve the immunity of the flock. End the pandemic.

The first problem, Fauci explained to CNN, is that theThe vaccine can only be 70 to 75% effective. The measles vaccine is 97 to 98% effective, but the fauci does not believe that we will get there with coronavirus, which is why it is ready to "settle" for the efficiency of the 70s to 75 percentage range .

The second problem is that everyone will not be willing to get the vaccine. A survey of the Norc Press-Norc Center Associated with Public Affairs Research was 20% of respondents saying they would do itrefuse the vaccine, with an additional 31% claiming that they were uncertain. In another CNN survey, one third of respondents declaredwould not be a Covid-19 vaccine, even if it was inexpensive and readily available.

Like wildlife notes, these problems are syntraised that the vaccine would probably not be enough for the United States to reach the immunity of the flock, which is whenenough of the population is immunized against a virusAs much of a vaccine or anterior infection - to prevent the virus from spreading more. In the case of most viruses, 7o to 90% of the population must be immunized to reach the immunity of the herd.

With a vaccine that can be as low as 70% efficient and a substantial part of the population that does not want to be vaccinated, hitting this target is hard to imagine. "It will not be easy" convincing people to get vaccinated, said that Fauci said CNN. "Anyone [who] think it will be easy is not confronted with reality. It will be very difficult."

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There are other problems to consider when it comes to a coronavirus vaccine. It's unclearHow long does immunity last, so that peoplecould need several shots Maintain this immunity - and it could take more convincing. It would also present even more important challenges in terms ofvaccine productionAnd some experts have already rang the alarm of supply chain problems in the line.

There were hopes thatContact tracing could significantly slow the propagation of coronavirus Before the development of a vaccine, but as it said that Fauci said CNN, these efforts do not prove terribly effective. Which corresponds to what he told CNBC on June 26, when he saidContact Tracing is "does not go well". For the moment, the best advice remains to wear masks and social distancing as the country is trying to get the outbreak under control. And learn more about a potential vaccine, check these7 questions about the coronavirus vaccine, replied by doctors.