Scientists are calling for experiments to find out whether Corona vaccines stop the spread of the virus from person to person


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Cairo – by Mohamed Salah – Vaccine developers hope to launch an ambitious study as soon as possible to answer a critical question about Coronavirus vaccines and can they stop the virus from spreading ?, Two vaccines were from a company Pfizer And ModernThe Americas are very effective in protecting people in the late-stage studies from contracting the Coronavirus, the two companies announced in November, but the trials do not tell us whether vaccines help prevent the virus from spreading from person to person.

According to the “Business Insider” site, Dr. Larry Curry, a virologist at the Fred Hutchinson Center for American Cancer Research, said: “We do not have any knowledge about whether vaccines actually prevent you from getting infected at all.”

Corrie suggested enrolling thousands of students on college campuses across America, starting in January, to conduct an experiment, where these volunteers would receive two doses of the Moderna or Pfizer vaccine, or a placebo, and then the students would continue their lives while researchers test them to detect the Corona virus either every day or every day. Two days and they routinely draw blood.

In the first vaccine trials, volunteers were tested for the Coronavirus only if they showed symptoms. By testing everyone daily, researchers will be able to detect infection without symptoms and determine whether vaccines can prevent it as well.

While the elderly are most likely to get seriously ill from this virus, most of the virus’s spread stems from young adults, who often have no symptoms.

Asymptomatic carriers can inadvertently spread the virus to the most vulnerable people, exacerbating a public health crisis.

The information from the new trials will also help determine how long people will have to wear masks and social distancing, even while vaccines are rolling out.


Currie recently pitched this trial idea to a public-private partnership called Acceleration of Clinical Interventions and Vaccines for Coronavirus, or ACTIVE. The group is a mix of leading experts from government, academia and the pharmaceutical industry who have guided America’s most important research on vaccines and therapies.

“We know that if it reduces infections, the public health benefit will rise dramatically and we think it’s very important to get to know it quickly,” Curry said in a phone interview.

Supporters of the plan said that studies could be completed by May, so that it precisely matches the length of the spring semester at most universities.

If an effective vaccine were widely available, it would be difficult to justify withholding it for some people for a trial but young, healthy college children would not be a priority class for getting the vaccine as long as supplies are limited.

Public health authorities do not expect the Corona vaccine to be widely available until late spring or early summer.

The trial is still a proposition, and needs funding and a partner in the pharmaceutical industry.

No company responded Modern And Pfizer On specific questions about this proposal, a representative of Moderna, Ray Jordan, said that biotechnology does not have data at the moment “that would be useful about asymptomatic transmission.”

Moderna’s chief medical officer, Tal Sachs, told Axios that he believes that his company’s vaccine may prevent transmission of infection, but there is no strong evidence for this and he warned that people’s behavior should not change after vaccination.

“When we start publishing this vaccine, we will not have enough concrete data to prove that this vaccine reduces transmission,” he added.


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