Infectious Diseases

The authorization says the vaccine can be given three to six months after a second dose of the primary vaccine series, or the most recent booster shot.

NACI includes recommendation to use one-fifth the usual dose intradermally (off-label) for the second pre-exposure vaccination dose, in times of limited vaccine supply.

A number of scientists have wondered if aluminum, a vaccine additive that has been used for decades, had a role in allergies and asthma in children.

The research was based on blood samples from patients who were diagnosed with COVID-19 between August 2020 and September 2021.

Non-vaccinated have much higher rates of persistent symptoms post infection

Study compares results of nasal swabs for SARS-CoV-2 testing self-collected by children and adolescents with those collected by healthcare workers 

Antibody response rates jumped from 17.3% to 66.7% with longer intervals.

Large U.S. study compares hospitalization rates in unvaccinated, vaccinated and vaccinated plus booster dose individuals