US Studies Mixing COVID-19 Vaccines, Booster Shots
The COVID-19 vaccines currently available in the US are Johnson & Johnson, Moderna, and Pfizer-BioNTech.
“Although the vaccines currently authorized by the U.S. Food and Drug Administration offer strong protection against COVID-19, we need to prepare for the possibility of needing booster shots to counter waning immunity and to keep pace with an evolving virus,” U.S. National Institute of Allergy and Infectious Diseases (NIAID) director Dr. Anthony Fauci said in a statement.
“The results of this trial are intended to inform public health policy decisions on the potential use of mixed vaccine schedules should booster doses be indicated,” he added.
Each vaccine group will consist of about 25 people aged between 18 and 55, and another 25 people aged 56 and above.
“Twelve to 20 weeks following their initial vaccination regimen, participants will receive a single booster dose of the Moderna COVID-19 vaccine as part of the trial,” the NIH said.
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