The covid-19 vaccine is being awaited by all the governments of the world, in order to end the new coronavirus pandemic and return to normal.
However, According to experts, in countries like the United States this would not be enough to quell the emergency and create so-called group immunity, as there are several reasons ssocial and behavioral that would ‘impede’ it.
(Also read: Covid-19: China approves ‘internal use’ of a vaccine in its Army).
The American case
Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, of the United States, assured ‘CNN’ that, with the support of the government of his country, it is expected that in the next three months three vaccines against coronavirus will be studied in clinical trials.
However, the expert believes, the effectiveness would not be 100%.
“The best one we have done is measles, which is 97 to 98 percent effective. It would be wonderful if we got there. I don’t think we will. I would settle for an effective vaccine at 70, 75%Fauci said.
On the other hand, a ‘CNN’ survey, conducted during the past month of May, found that 1 in 3 Americans would not be vaccinated against covid-19, even though it is widely available and inexpensive.
Thus, Fauci himself asserted that it is “unlikely” that his nation does not achieve sufficient levels of immunity to quell the outbreak.
(It may interest you: Effects that a possible covid-19 vaccine caused in volunteers).
1 in 3 Americans would not be vaccinated against covid-19 even if the vaccine is inexpensive
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“It is not possible to provide a collective immunity against the coronavirus if a vaccine with an efficiency of 70% to 75% is taken by only two thirds of the population,” he said.
This is because Group immunity occurs when a sufficient proportion of a population is immune to an infectious disease, either by previous disease or vaccination, so that it does not spread from person to person.
“An educational effort must be made for people to be vaccinated against this coronavirus and the help of public figures will be required to raise awareness,” he added.
According to the expert, in American society “there is a general feeling of anti-science, anti-authority and anti-vaccine, an alarming percentage”.
(Read also: WHO believes the covid-19 vaccine would arrive in early 2021.)
Group immunity occurs when a sufficient proportion of a population is immune to an infectious disease
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As long as there is no vaccine, said the expert, contact tracking is important to contain the virus outbreak. This requires isolating infected people, investigating who they have had contact with while they were infectious, and then quarantining them.
However, contact tracing is complicated by the fact that many individuals infected with the new coronavirus have no symptoms, “so the classic standard paradigm of contact isolation – contact tracing does not work. It doesn’t matter how well you do it because you don’t know who you’re tracking, “he added.
(It may interest you: Oxford produces vaccines to be sold in December once tested).
As of noon on June 30, the world had more than 10 million infected and more than 500,000 deaths.
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