US health authorities confirmed that a third booster will start in the middle of next month. of the Covid-19 vaccine. The call will be for the qualified population and the objective is to avoid a new regeneration product of the Delta variant It’s from people who still refuse to be vaccinated and spread the virus.
The decision was announced after revealing the results of studies that were carried out to determine whether or not a booster was needed. The data showed “very clearly” that the protection of vaccines diminishes over time., especially its effectiveness against mild and moderate forms of the disease when the case is due to the Delta variant.
For this reason, the Department of Health and Human Services (HHS) and the expert group that advises the White House announce that the third dose will start to apply from September 20th.
Conditions for the third dose
At first, the booster dose will not be for everyone. The condition to be fulfilled is Received the second dose eight months before.
The first to receive the third injection will be people who were vaccinated for the first time in the United States, this is the Health professionals, at bigger people living in nursing homes and members of the security forces.
What are booster vaccines
The vaccines that give the green light to this possibility are those made by laboratories Pfizer and Modern.
US authorities also predicted that those who received the vaccine may need to receive an additional dose. Johnson & Johnson (J&J), which is a single dose.
However, before starting this process, the Food and Drug Administration (FDA) and a scientific committee of the Centers for Disease Control and Prevention (CDC) must give the go-ahead.
Washington reasons
The Joe Biden administration explained that it made this decision after concluding that the effectiveness of the vaccines decrease over time after receiving the first doses.
“The available data make it very clear that protection against SARS-CoV-2 infection begins to wane after initial doses of vaccines, and in association with Delta variant predominance, we are starting to see evidence of reduced protection against mild and moderate disease,” the statement said.
They also explained the reasons for starting with the Pfizer and Moderna vaccines, and then perhaps Jannsen’s. This is the serum of Johnson & Johnson it only began to be administered in the country in March 2021 and you still don’t meet the eight month requirement. However, the others began to be applied since December last year.
Those from Pfizer and Moderna employ messenger RNA, which is a type of code that the vaccine delivers to cells. This code serves as an instruction manual for the vaccinated person’s immune system to learn to recognize the coronavirus and attack it.
Serums like J&J uses an adenovirus, which is an “inactivated” virus. which sends instructions to the vaccinated person’s body to fight Covid-19.
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