Vaccination campaigns against COVID-19 increase the differences in the world. While the poorest countries have a very small percentage of their population vaccinated, nations with more resources already have a vaccination schedule above 75 percent with both doses, and some even apply third or booster doses to increase the level of protection.
However, this Monday, September 13, a new study published by the specialized journal The Lancet, With the opinion of leading scientists in the world and the United States, he categorically affirms that these booster doses are neither necessary nor appropriate for this moment of the pandemic.
While the vaccine’s effectiveness against mild illness may diminish over time, protection against more acute symptoms would persist, according to scientists.
“Current evidence, therefore, does not appear to show the need to increase in the general population, in which efficacy against severe disease remains high,” the scientists wrote, adding that the wide distribution of boosters “is not appropriate. at this stage of the pandemic ”.
One of the adverse situations that most concern scientific authorities is the possible proliferation of cases of myocarditis, a rare heart condition that could be dangerous in older patients.
“If the unnecessary increase causes significant adverse reactions, there could be implications for vaccine acceptance that go beyond COVID-19 vaccines,” they wrote.
Scientists in reviewing The Lancet released Monday include Marion Gruber, director of the FDA’s Office of Vaccine Research and Review, and deputy director Phil Krause.