The intensity of the color shows the magnitude of reductions or promotions (Figure 3). It is this second class that provides the most interest. And the type of antibodies that vaccines trigger are not detectable by tests designed to tell who has already infected, so the blood test likely won't confirm that someone has been vaccinated (functioning like a pseudo-immunity passport). Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention, confirmed yesterday that over 600,000 children between 12 and 15 have received the vaccine since it became eligible to them last week. More Americans are eligible for the vaccine than ever before as well, with the Pfizer-BioNTech vaccine being approved for emergency use for children aged 12 to 15 last week.
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