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Human clinical trials have not been completed, meaning efficacy and safety in people is not established through rigorous research
Vaccine-induced respiratory mucosal immunity is vital for protection against SARS-CoV-1 in animal models [46], and greater numbers of total tissue-resident T cells in the lungs have been associated with protection from severe COVID-19 [47, 48]
Cognitive Enhancement Studies Research suggests potential cognitive benefits through NAD+ preservation in brain tissue, as NAD+ depletion impairs synaptic transmission and neuromuscular junction communication
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